Functional group Test for Alcohol and Ketones by Seema Makhijani Class 12 Chemistry practicals

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  • Опубликовано: 29 янв 2025

Комментарии • 279

  • @SanchitGoel
    @SanchitGoel Год назад +108

    For Alcohol
    - Add ethanol in test tube (Alcoholic Smell)
    -Add some drops of Water (No Physical change as alcohols are water soluble)
    -Acidic Nature : Slightly Acidic (pH : 6 to 7)
    -C.A.N Test
    Add some drops of cerric ammonium nitrate in pure alcohol and you will see the colour change from colourless to Red
    For Ketones
    -Add some Acetone in test tube
    -It would have Nail Polish Remover like smell
    -Add some drops of water , If no change occurs that means ketone is soluble in water , Therefore we can conclude it must be a lower Ketone (Less Carbon)
    - Nature : Slightly Acidic (pH: 6 to 7)
    Test 1 :
    - Add some NaOH in dil Acetone
    - Add some drops of Sodium nitropruisside and you will a color change from colourless to Reddish Black
    Test 2
    -Add NaOH in dil Acetone
    -Add crystals of m-Di Nitro Benzene
    And it will change its colour from colourless to Purple Which confirms that it is ketone

  • @Gaku-tw3bd
    @Gaku-tw3bd 2 года назад +64

    I didn't understand this well in my school.Because we have got chemistry teacher s with lack of experience.But you mam have literally explained it well.

  • @sanskritid8590
    @sanskritid8590 2 года назад +67

    ketone starts at 3:33

    • @kartikye6962
      @kartikye6962 12 дней назад +1

      you a real legend bro
      cheers

    • @Scacred
      @Scacred 12 дней назад +1

      You a real one for this …🫡

  • @meghapage7311
    @meghapage7311 3 года назад +55

    A life saver teacher..... Loads of Love Ma’am

  • @aditya__exe
    @aditya__exe 3 года назад +363

    Her smile when she says alcohol is water soluble.

    • @seemamakhijani721
      @seemamakhijani721  3 года назад +133

      Nice to know that you noticed.
      Good aditya

    • @technicalstranger9136
      @technicalstranger9136 3 года назад +85

      @@seemamakhijani721 ma'am i think aditya didn't add the water to the alcohol..😂

    • @a33_sarthakhedaoo39
      @a33_sarthakhedaoo39 3 года назад +25

      @@technicalstranger9136 lmfaooo

    • @Fithit807
      @Fithit807 2 года назад +1

      Abe Teri amaa hai be

    • @aditya__exe
      @aditya__exe 2 года назад +24

      @@Fithit807 dude wtf? Did I say anything wrong about her? I totally respect her and I don't think my comment is demeaning to anyone in anyways. If you feel that I have made a wrong statement, I apologise🙏.

  • @vasudagra8058
    @vasudagra8058 3 года назад +29

    Thank You so much mam for your guidance on chemistry practicals. It has helped me a lot, even more than my own teacher. Tomorrow is my practical exam and I need blessing for exam by touching your feet but unfortunately I cannot meet you practically. Once again thank you so much maam

  • @d41sounakmaikup5
    @d41sounakmaikup5 3 года назад +19

    U r a blessing to us students ma'am. I was fearing a lot about practicals. Though i already studied viva ques but practicals were left. Thanku so much ma'am.

  • @kunal_kh01
    @kunal_kh01 2 года назад +24

    In term 1 too, you helped us mam! Thank you again for term 2 ❤️❤️✨

  • @adityajaiswal7330
    @adityajaiswal7330 3 года назад +10

    I have no words for you mam . How easily you explain everything. Thanks mam If I got good marks in practical because of you only so once again thanks a lot mam😊😊

  • @Dearyamss
    @Dearyamss 3 года назад +13

    Thank you so much ma'am u r so much supportive to your class 12th student's we r blessed ma'am to have such an passionate teacher on YT🙏🙏

  • @KirtiSingh-mk2qf
    @KirtiSingh-mk2qf 22 дня назад +1

    If and only i had a teacher like her....thanku ma'am ❤

  • @sohampal2039
    @sohampal2039 4 года назад +19

    Magical observations 👍👍👍

  • @Aparan1313
    @Aparan1313 Месяц назад +1

    award deserving teacher ❤️💯really all doubts cleared in one wayyy

  • @dr.neelimagulati6043
    @dr.neelimagulati6043 2 года назад +9

    Evergreen content. Binge watch worthy.

  • @LatikaKumawat-g8c
    @LatikaKumawat-g8c 3 дня назад +1

    Itna acha padhaya h very nice mam🎉

  • @henal05
    @henal05 2 года назад +3

    Thank you mam, I was having a doubt for ketonic group and you helped me to solve it
    Always grateful to your lectures and practicals

  • @dr.deeprajnath5082
    @dr.deeprajnath5082 3 года назад +7

    I am a Doctor and when I was in class 12 biology and chemistry were my favourite subjects. Thanks mam, nice explanation 👍👍

  • @RitikTyagi-t5i
    @RitikTyagi-t5i Год назад +1

    She is such a great human who make chemistry practical understandable other wise in lab
    😊😊😅😅😅😊😊
    Let me know how many have break the test tube without being caught

  • @anchalverma123
    @anchalverma123 Год назад +1

    Only I can say is 'excellence and experience' for her teaching skills ❤

  • @06kishanchoudhary59
    @06kishanchoudhary59 2 года назад +5

    I have prelim practicals tomorrow. These videos are good for revision as this was the first practical we did in 12th so its difficult to remember from memory

  • @ra71.
    @ra71. 2 года назад +1

    alcohols:
    -ceric amm nitrate(yellow, few drops)+ alcohols = red\orange sol
    ketones:
    ketone in basic medium first(naoh)
    - m-dinitrobenzene crystals(flaky, yellow) + basic ket. sol = violet
    - sodium nitroprusside sol + basic ket. sol = blood red

  • @PreparewithShivamkumar
    @PreparewithShivamkumar 4 года назад +22

    A very experienced and well explaining teacher. Thanks mam

  • @madhvirathore5636
    @madhvirathore5636 3 года назад +3

    Mam u r da best✌🏻....thank u soooo much🙏🏻 ..it helped me a lot

  • @AnitaSharma-fu2qe
    @AnitaSharma-fu2qe Год назад +1

    Helped a lot in term 1 practical.... more explanation given as compared to my school teacher

  • @vinayaksharma-ys3ip
    @vinayaksharma-ys3ip 3 года назад +4

    💯👍🙏🙏THANK YOU VERY MUCH MAM.🙏🙏✌️👍🏼👍
    YOUR VIDEOS ARE VERY HELPFUL 💯🙏🙏💯💯

  • @aenprd4266
    @aenprd4266 2 года назад +3

    Tomorrow is my practical exam and your videos have helped a lot ma'am ❤️, So grateful for your videos, they are absolutely top class, thank you ma'am once again.

  • @coolshadestunner
    @coolshadestunner 22 дня назад +1

    Thank you so much mam. The way you even explain the reasons behind the solubility, colour change,etc. It really helps preparing for the viva side by side. My external teacher asked me the same question today, and i was able to answer because of you.
    Q- why is alcohol soluble in water, and why are ketones not reduced by the tollen's test.😃😇

  • @kumarimanjari4217
    @kumarimanjari4217 2 года назад +3

    Thank u so much mam. I am here two days before my chemistry practical exam and I am pretty much confident just and just because of u now just need ur blessings🙏🙏🙏 unfortunately can't touch ur feet but mam plz bless me 🙏🙏🙏🙏

  • @dharmendranegi771
    @dharmendranegi771 3 года назад +5

    Thanks a lot ma'am! Really very helpful!

  • @loveandpeace8644
    @loveandpeace8644 3 года назад +5

    Thank you ma'am your videos are very helpful 🙂😊

  • @dishanttyagi7088
    @dishanttyagi7088 2 года назад +1

    The only teacher who is dedicated to his job thanks mam

  • @AnujGupta-ks8ds
    @AnujGupta-ks8ds 2 года назад +1

    Agar mam aapke jaise teachers hmaare schools me hon to hmm logo ka intrest bhut badh jaaye pdhai ke prati

  • @Pragya_Vedan
    @Pragya_Vedan 19 дней назад +1

    Thankyouuuu sooo muccchhh ma'am 😊

  • @ankitamishra3230
    @ankitamishra3230 2 года назад +2

    Thank you so much mam your positive vibes and explanation gives me confidence to perform practical

    • @seemamakhijani721
      @seemamakhijani721  2 года назад +2

      Thanks a ton
      Do share the video

    • @ankitamishra3230
      @ankitamishra3230 2 года назад

      @@seemamakhijani721 Mam I have shared in my class group of classmates

  • @SantoshSharma-nq1tz
    @SantoshSharma-nq1tz 3 года назад +1

    Thank u mam sb achhe se smjh aa gya👍👍

  • @aryanbansal624
    @aryanbansal624 3 года назад +4

    maam what is the reaction occuring with m-dinotrobenzene

  • @CAPT80
    @CAPT80 2 года назад +4

    Thank you mam for providing it to us.....🙏

  • @rohan8767
    @rohan8767 2 года назад +4

    Mam thank you for this amazing lecture

  • @mamtakrishnani6525
    @mamtakrishnani6525 2 года назад +2

    Great explanation😍😍😍😍😍❤️❤️

  • @RahulYadav-ev8do
    @RahulYadav-ev8do 2 часа назад

    You can mix solid CAN and some water mix in alcohol and see the beautiful red colour

  • @siddhanthpandey314
    @siddhanthpandey314 Год назад

    Thank you so much mam , I am ready to do good in my pracitcals tommorow

  • @gautamchakraborty1545
    @gautamchakraborty1545 2 года назад +1

    Thnk u so much Ma'am.... beautiful explanation ❤️

  • @Shxdow25
    @Shxdow25 Год назад +1

    ma'am do we have to perform both the test for ketones? For example if i perform the sodium nitroprusside test and get the blood red color, should i perform the m-dinitrobenzene test as well? Thank you for the videos nonetheless, really helpful!

  • @lucky-sk6kf
    @lucky-sk6kf 2 года назад +3

    3:30 - Ketone

  • @Kilowatt-ps
    @Kilowatt-ps 3 года назад +4

    Ma’am why didn’t you did 2,4DNP test?

  • @shivamkrtiwari5324
    @shivamkrtiwari5324 3 года назад +7

    On more thing hamare teacher aap ki thrah explain bhi nahi karte....wo 1 baar mai pura theory boldete h...or chemical pakda dete h...kar naj ke liye...

  • @Ananyasarkar_07
    @Ananyasarkar_07 18 дней назад

    Thanku so much maam suchaa saviour u are❤

  • @devputrasingh1064
    @devputrasingh1064 11 месяцев назад

    Thanku mam for your guidance in chemistry practical.It has helped me a lot in understanding the experiment.

  • @akanksha2945
    @akanksha2945 2 года назад +2

    Thank you mam for amazing explanation

  • @mohmmadismailkhan3287
    @mohmmadismailkhan3287 4 года назад +1

    Vvv ease method to teach , I apperciate you mam

  • @Rusted_Knight
    @Rusted_Knight 2 года назад +2

    God knows what i would do without her...Thank you maam

  • @rajputsatyam499
    @rajputsatyam499 Год назад

    Best practical mam i have ever seen in my life ❤️

  • @YoYo-ux2rx
    @YoYo-ux2rx 2 года назад +4

    7 min over 1 month in class..

  • @Pragya_Vedan
    @Pragya_Vedan 19 дней назад +2

    3:30 ketone

  • @potu6534
    @potu6534 2 года назад +1

    Thank you very much madam 😊😊😊😊😊😊

  • @Kharpreet05
    @Kharpreet05 2 года назад

    Mam you are better then our chemistry teacher❤️

  • @shiusoni592
    @shiusoni592 Год назад

    Thank you ma'am, I am watching literally all your videos 1 day before my practical

    • @seemamakhijani721
      @seemamakhijani721  Год назад

      All the best

    • @piyushlakhera1408
      @piyushlakhera1408 Год назад

      Meraaa bhi kal hi haii par mujhee...ye nahii ptaa ki kaisee krtee ha practical 😭....can you helpp m

  • @shreyajanvi2861
    @shreyajanvi2861 3 года назад +1

    Thank you so much for uploading practical videos

  • @munavwaransari6137
    @munavwaransari6137 Год назад

    Hello mam
    Cerric ammonium nitrate solution kese prepare karna hai? Use only water??

  • @raghav.s5118
    @raghav.s5118 2 года назад

    you made fucntional group easy thank you very much

  • @ishinesmart9752
    @ishinesmart9752 2 года назад +1

    Amazingggggg ma'am 😍😍

  • @vasudagra8058
    @vasudagra8058 3 года назад +5

    Mam, By using your method of practicals, I have scored good marks in practical exam. Thanks a lot. 😁

    • @thatgeekysilento3082
      @thatgeekysilento3082 3 года назад

      Bro any tips for the viva? What were you asked?

    • @vasudagra8058
      @vasudagra8058 3 года назад

      @@thatgeekysilento3082 They simply asked the reactions and terminology.

  • @ankitamishra3230
    @ankitamishra3230 2 года назад

    Mam does ceric ammonium answer aromatic alcohol

  • @sarsvati1
    @sarsvati1 3 года назад

    How to make conc. NaOH ??in our lab conc . NaOH is not given

  • @bhumiyadav4480
    @bhumiyadav4480 2 года назад +1

    In physical apperance
    Hume school mein likhaya gya ki
    State solid hoti hai
    Colour white hota hai
    Odour odourless hota hai
    Aur solubility insoluble in water hota hai🙄

  • @saurabhchahal24
    @saurabhchahal24 2 года назад +1

    can anyone tell if test for unsaturation(baeyer test or bromine test) is given by C=O bond?

    • @seemamakhijani721
      @seemamakhijani721  2 года назад +1

      No its not

    • @saurabhchahal24
      @saurabhchahal24 2 года назад

      @@seemamakhijani721 ok thank you ma'am. It's my chemistry practical tomorrow. I am watching all your videos. They are really very helpful.

  • @Kaveh-q1j
    @Kaveh-q1j 12 дней назад

    When writing the odour for acetone, instead of writing nail polish remover, write that it has a sweet, fruity and pungent smell

  • @starstudio143
    @starstudio143 2 года назад

    Ma'am how to make cerric ammonium nitrate solution?
    Ma'am please tell.

  • @examexpress3952
    @examexpress3952 2 года назад

    Oh is alcohol group then can naoh is used

  • @mrrajabro2240
    @mrrajabro2240 3 года назад +1

    Thank your mam😊😊😊😊😊❤️❤️❤️❤️

  • @sarsvati1
    @sarsvati1 3 года назад

    Can I use naoh from table reagent??

  • @rajsanatani9020
    @rajsanatani9020 3 года назад

    बहुत धन्यवाद मैम

  • @imcatwoman3738
    @imcatwoman3738 2 года назад

    For alcohol cerric ammonium nitrate if it turns red yup
    Fpr ketone meta di nitro benzene if it turns violet yup
    Or sodium nitroprosyl soln if it truns red yup

  • @nooneknowsme1370
    @nooneknowsme1370 3 года назад +2

    Shukriya ma'am! Ta daado sutho sikhainda aayo!

    • @seemamakhijani721
      @seemamakhijani721  3 года назад

      Please share, forward and promote kajo🙏🙏🙏🙏

  • @nihalbhatia491
    @nihalbhatia491 27 дней назад

    Ma'am can we do the test with FeCl3?

  • @rajasingh.tsingh4192
    @rajasingh.tsingh4192 2 года назад

    Mam,
    Can you pls send me the reagent preparation procedure mam

  • @shikhajoshi6069
    @shikhajoshi6069 3 года назад +1

    Helpful 👍❤️

  • @Bullseyetarget
    @Bullseyetarget 2 года назад

    Mam can you pls say why my ceric ammonium nitrate test shows yellow for methanol and not red or pink

  • @pavansharma3209
    @pavansharma3209 2 года назад

    Thank you mam ❤️❤️❤️❤️😘😘😘

  • @devesh7285
    @devesh7285 2 года назад +4

    thank you so much mam.. your videos are awesome .❤️❤️❤️

  • @2003aryan
    @2003aryan 3 года назад

    Very Helpful 👍

  • @omgoel1572
    @omgoel1572 3 года назад

    Thank you mam
    It is very good
    Sound should be more clear

  • @radhikaanand8924
    @radhikaanand8924 11 месяцев назад

    ma'am was our chemistry external teacher .😄😄

  • @chemistrypracticalbyashoks6299
    @chemistrypracticalbyashoks6299 3 года назад +1

    Nice....n....well👍

  • @yashthakur9425
    @yashthakur9425 2 года назад

    Thank u so much mam 🔥🔥👍

  • @jokeR-ij2bm
    @jokeR-ij2bm 4 года назад +2

    Can't we use sodium metal instead of cerric ammonium nitrate.?

    • @seemamakhijani721
      @seemamakhijani721  4 года назад +1

      No it's difficult to handle and the H2 gas liberated may catch fire.

    • @seemamakhijani721
      @seemamakhijani721  4 года назад +2

      Also the alcohol used in lab is not pure so the water present in it will react with sodium to give H2

    • @jokeR-ij2bm
      @jokeR-ij2bm 4 года назад

      OK madam

    • @jokeR-ij2bm
      @jokeR-ij2bm 4 года назад

      Thanks

    • @gotenkssharma6515
      @gotenkssharma6515 2 года назад

      @@jokeR-ij2bm Bhai lab jal jayega 🤣🤣🤣

  • @ayushiyadav8432
    @ayushiyadav8432 2 года назад +1

    Ma'am is one test enough for testing functional group in board practicals....for example in Alcohol you did only cerric ammonium nitrate test but in my school teacher has done ester test and sodium metal test along with cerric ammonium nitrate test???

  • @kaustavkakati6641
    @kaustavkakati6641 2 года назад

    Love you ma'am ❤️❤️❤️

  • @somnathsharma5565
    @somnathsharma5565 2 года назад

    perfect explanation

  • @ldeepalikatakwarl6863
    @ldeepalikatakwarl6863 3 года назад

    Very well explained thankyou mam

  • @shreyaskumarsingh6212
    @shreyaskumarsingh6212 2 года назад +1

    Thanks ma'am can you guide us for board exams

  • @annukumari4197
    @annukumari4197 Год назад

    You are the best mam

  • @bhavyabatra6970
    @bhavyabatra6970 4 года назад +1

    Maam why in 2 test of ketones ,violet colour appeared above a certain layer?

  • @Radhekrishna-rk0705
    @Radhekrishna-rk0705 15 дней назад

    Excuse me mam i wanna know that as in practical we will not know about the sample so do we have to perform the analysis test from alcohol even if the sample is ketone??(In front of examiner)

    • @seemamakhijani721
      @seemamakhijani721  15 дней назад

      Yes you need to do all tests to rule out functional groupa

    • @Radhekrishna-rk0705
      @Radhekrishna-rk0705 15 дней назад

      @@seemamakhijani721 thnks a lot mam.. I've cleared my doubts in all experiment through your videos and you're really the best teacher and I'm sure that it will help me in my practical tomorrow 😇😇

  • @ananyahuddar2063
    @ananyahuddar2063 2 года назад +1

    One thing is to be agreed here- she has a rich English vocabulary

  • @sristisanyal4424
    @sristisanyal4424 Год назад

    Hello mam . Mam our practical exams are being postponded so, it will be on 16th of Jan 2024. Mam one thing to ask that in pre-board practical I was given the organic salt not the liquid . So how will I do all the tests ?

  • @drishtia4163
    @drishtia4163 3 года назад +1

    thank you so much for all the videos ma'am! 🙏🏼

    • @drishtia4163
      @drishtia4163 3 года назад

      @ashutosh kal hai

    • @drishtia4163
      @drishtia4163 3 года назад

      @ashutosh all the best!

    • @drishtia4163
      @drishtia4163 3 года назад

      @ashutosh badhia! tumhara?

    • @drishtia4163
      @drishtia4163 3 года назад

      @ashutosh arey vaah! all the best uske lia bhi. mere to sare ho chuke h

    • @drishtia4163
      @drishtia4163 3 года назад

      @ashutosh preboards. 19th tak haii

  • @HaSingh-ty3kg
    @HaSingh-ty3kg 2 года назад

    maam is it compulsory to go for second conformatory test if i get my desired result in 1st test itself.(Is one confirmatory test enough or we have to write more confirmatory tests.)

  • @sktrivikrambehera4207
    @sktrivikrambehera4207 Год назад

    Why basic medium is needed ma'am

  • @kaminigupta7338
    @kaminigupta7338 5 месяцев назад +3

    She is soo sweet but my teacher is so rude she doesn't no anything and she doesn't practice the practicals