RRB ആവർത്തിച്ച കെമിസ്ട്രിയുടെ 250 ചോദ്യങ്ങൾ Part - 5 || RRB NTPC, Group D

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  • Опубликовано: 10 янв 2025

Комментарии • 252

  • @Academis
    @Academis  4 года назад

    *To join the complete Chemistry Crash Course send "Chemistry" to 08891489498 in WhatsApp/Telegram
    or click here: wa.me/918891489498?text=Chemistry
    Link you our website: academisonline.com

  • @quid97
    @quid97 4 года назад +26

    Gun metal - tizco ( sounds like sound of a gun - tishko) Tin zinc copper❤️

  • @manudev2121
    @manudev2121 4 года назад +1

    Soft Iron used for making - Electromagnet

  • @Arunkumar-fk7vy
    @Arunkumar-fk7vy 4 года назад +10

    Sir Question no 246 - Nitrate alla
    athu potassium permanganate aanu.

  • @tceofficialchannel
    @tceofficialchannel 4 года назад +4

    Milk sugar - Lactose
    Fruit sugar - Fructose

  • @sunithac1915
    @sunithac1915 4 года назад

    1.Gunmetal -copper +tin +zinc
    2.Atomic number of Carbon -6
    3.Father of periodic table -Dymithriv Mendalif
    4.Father of modern periodic table -Henry Mosley

  • @respin00
    @respin00 4 года назад +1

    In sugar hydrogen and oxygen are in the ratio........
    Ans 2:1

  • @krishnaammu9178
    @krishnaammu9178 4 года назад +4

    #Artificial Silk , first artificial fibre - Rayon
    # first fully synthetic fibre - Nylon
    # Bell metal is an alloy of Cu and Sn (4:1 ratio)
    # Dutch metal is an alloy of Cu and Zn
    # Two immiscible liquids are seperated by using Seperating funnel
    # In the reaction of metal with acid - H2 gas released
    # In the reaction of metalcarbonate with acid- CO2 is released
    Thank u Sir🙏

  • @aravindkrishnan2143
    @aravindkrishnan2143 4 года назад

    250. White vitriol - Zinc sulphate

  • @allenchristyaj7408
    @allenchristyaj7408 4 года назад +2

    Good class sir thank you....🙏

  • @jinnujesurya2538
    @jinnujesurya2538 3 года назад

    1. The scale which is used to measure the hardness of the diamond.
    2.minamata disease is caused by which element.
    3.the isotope used for the treatment of skin cancer.
    4.118th element in the periodic table is
    5.the substance which is used as coolant in ice plants

  • @tceofficialchannel
    @tceofficialchannel 4 года назад +6

    Mercury is stored in Iron pot 🎉

  • @gokulg1902
    @gokulg1902 3 года назад

    1.How many triads identified by Dobereiner
    2. Instrument used to measure high temparature
    3. At what temparature milk is heated during pasteurization
    4. Charge of electron was founded by
    5. In acid methyl Orange turns to

  • @warmthofblaze8788
    @warmthofblaze8788 2 года назад

    Iron donot form amalgam with mercury

  • @reshmisujin2266
    @reshmisujin2266 4 года назад +2

    Wood spirit - methyl alcohol

  • @tintothambi8507
    @tintothambi8507 4 года назад +1

    Greate greate great work sir. Thank you 🙏

  • @aravindkrishnan2143
    @aravindkrishnan2143 4 года назад

    Thankyou sir🙏🙏🙏 May good things happen in your life🥰🥰🥰🙏🙏🙏🙏

  • @shimishamal
    @shimishamal 3 года назад

    Q.246-KMnO4-it is potassium permanganate ?

  • @prajeenak1548
    @prajeenak1548 4 года назад

    Thankyou sir...and my Q is The substance which is used as coolant in ice plants..?

  • @vishnusitar
    @vishnusitar 4 года назад +2

    The speed of chemical reaction between gas increases with increase in pressure due to increase in....

    • @flareup6001
      @flareup6001 4 года назад

      Probability of a number of collisions increases

  • @gokulramanadhank4034
    @gokulramanadhank4034 4 года назад

    Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chlioride : The type of reaction involved in it?
    A)Combination reaction
    B)combustion reaction
    C)oxidation reaction
    D)precipitation reaction

  • @aromalak2024
    @aromalak2024 4 года назад +2

    Father of Modern periodic table

  • @deepthiharikumar9138
    @deepthiharikumar9138 4 года назад +2

    Qn. The instrument used to regulate temperature to a particular degree is called?

  • @reshmisujin2266
    @reshmisujin2266 4 года назад

    Kalimannu - aluminium silicate

  • @sujithlal1200
    @sujithlal1200 4 года назад

    PH value of urin

  • @kiranbabu834
    @kiranbabu834 3 года назад

    Which metal using in electric bulb?

  • @nikhil.k4088
    @nikhil.k4088 4 года назад

    Thank you sir❤❤❤
    Fog is an example of ____

  • @vipin317
    @vipin317 4 года назад

    anode is _charge?
    =+ve charge
    In electrolysis metal deposited metal elecrode is_?
    =cathode

  • @reshmisujin2266
    @reshmisujin2266 4 года назад

    Metal with highest dencity - osmium

  • @suneeshvj2546
    @suneeshvj2546 4 года назад +1

    Chemical decomposition of an organic compound by water is called as ?

  • @kukku22
    @kukku22 4 года назад

    Thank you sir

  • @akhil7941
    @akhil7941 4 года назад +1

    വൈദ്യുത കാന്തങ്ങൾ നിർമ്മിക്കാൻ ഉപയോഗിക്കുന്ന alloy = പച്ചിരുമ്പ്

  • @kinginiZzzWorld
    @kinginiZzzWorld 4 года назад

    What is globers salt
    Sodim sulphate
    Chemical name of tear gas
    Chloro aseto phenon

  • @manojkrishnajithu3761
    @manojkrishnajithu3761 4 года назад

    Good class...

  • @green-ci5dw
    @green-ci5dw 4 года назад

    246- potassium permanganate

  • @sonimathulasi2283
    @sonimathulasi2283 4 года назад

    Thank YOU Sir🙏

  • @reshmisujin2266
    @reshmisujin2266 4 года назад

    Chemical name niter - potassium nitrate

  • @syammohan2636
    @syammohan2636 4 года назад

    Soft iron electromagnet

  • @shuaibabdulla1665
    @shuaibabdulla1665 4 года назад +2

    A polymeric substance used to make parachute -
    Viscose

  • @jerinjolly4534
    @jerinjolly4534 4 года назад +4

    Mercury does not form amalgam with iron

  • @sathyachithc7747
    @sathyachithc7747 4 года назад

    The element which has highest electronegativity - flurine

  • @sreejithmj7116
    @sreejithmj7116 4 года назад +1

    Temporary meganet manufacturing soft iron

    • @saaluzrooter
      @saaluzrooter Месяц назад

      Also used in transformer cores,motors, generators

  • @nijeeshk6968
    @nijeeshk6968 4 года назад

    Thank u sir..
    My Q: what is uranium dating?

  • @flareup6001
    @flareup6001 4 года назад

    Electromagnet-wrought iron

  • @sujith8208
    @sujith8208 3 года назад

    What is the monomer of natural rubber?

  • @gokulkk1630
    @gokulkk1630 4 года назад +2

    Who was invented Contact process
    Peregrene philips✌️

  • @juliyababu4611
    @juliyababu4611 4 года назад

    The Main source of naphthalene is: coaltar

  • @explore_with_padma
    @explore_with_padma 4 года назад

    250. How many atoms one mole of carbon(C-12) contain?

  • @quid97
    @quid97 4 года назад

    CGS system introduced by which country?
    France.
    FPS-( foot pound second) by Britain.🔥

  • @itsmes3579
    @itsmes3579 4 года назад +1

    220th question vapourisation alle sir

  • @PABLO-n5l
    @PABLO-n5l 3 года назад

    Super

  • @explore_with_padma
    @explore_with_padma 4 года назад

    Amalgum is never formed with iron. So, mercury is kept in iron pots.

  • @malayaliIIS
    @malayaliIIS 3 года назад

    KMnO4 potassium permanganate alleee

  • @Arunkumar-fk7vy
    @Arunkumar-fk7vy 4 года назад

    Gel is the colloidal form of
    a) liquid in solid b)solid in liquid
    c) gas in solid d) gas in liquid

  • @ashikahamed4522
    @ashikahamed4522 3 года назад +1

    Gun metal is an alloy of.......?

  • @MrBabysen
    @MrBabysen 4 года назад

    Adding which substance gives blue colour to glass ?

  • @aksajosephk9374
    @aksajosephk9374 4 года назад

    Thank you sirr.....waiting arnnuu😍

  • @vishnuhari023
    @vishnuhari023 4 года назад +1

    Mercury does not form amalgam with iron. Mercury is stored in iron pots☺

  • @pjrgaming1483
    @pjrgaming1483 4 года назад

    Hardness of water is due to presence of??

  • @gireeshkumar4119
    @gireeshkumar4119 3 года назад

    AMALGAM IS NOT FORM WITH IRON

  • @adithmamom6309
    @adithmamom6309 4 года назад +1

    The force that a neutron exerts on a proton inside an atom is ?

  • @anunithyaanu5229
    @anunithyaanu5229 4 года назад

    250)king of poisons-Arsenic ❤️😍👍

  • @anjanam8952
    @anjanam8952 4 года назад

    230.Iron
    Q. Ruby is called
    Keep going sir😀

  • @vishnuhari023
    @vishnuhari023 4 года назад

    Burning pyrites ores gives?

  • @sharath8069
    @sharath8069 4 года назад +1

    TEMPORARY HARDNESS OF WATER
    CAN BE REMOVED BY ADDDING?????????????

  • @resh7026
    @resh7026 4 года назад

    Isotopes of hydrogen?

  • @prasunprabhakar1207
    @prasunprabhakar1207 4 года назад

    Sir I have a doubt...
    Who discovered proton?
    Most of channels ( especially in hindi ) for ssc coaching says that it was discovered by Goldstein. But I have learned it was by Rutherford..
    Can u pls clarify this....

  • @gireeshkumar4119
    @gireeshkumar4119 3 года назад

    INSTRUMENT USED TO MEASURE VERY HIGH TEMPERATURE IS PYROMTER

  • @sachu01234567879
    @sachu01234567879 4 года назад

    Kmno4 potassium pemanganate

  • @adarshkv7020
    @adarshkv7020 4 года назад +2

    ഒഴിവുകൾ 50% കുറച്ചുകൊണ്ടും പുതിയ തസ്തികകൾ വെട്ടിച്ചുരുക്കികൊണ്ടും ഉള്ള സർക്കുലർ വന്നല്ലോ..പുതുതായി നടക്കുന്ന റിക്രൂട്മെന്റിനെ അടക്കം ബാധിക്കും എന്നാണല്ലോ പറയുന്നത് ... 😢😭

  • @nidhinar6222
    @nidhinar6222 4 года назад +1

    Which gas is typically produced when metal reacts with acids

  • @degaardstan720
    @degaardstan720 4 года назад +2

    സർ, History ക്ലാസ്സ്‌ Lucent based ആണോ?

  • @KrishnaKumar-ml3si
    @KrishnaKumar-ml3si 4 года назад

    Kmno4 pottassiam permanganite ale nitrate alallo

  • @anugprem99
    @anugprem99 4 года назад

    The metal used to separate copper from copper sulphate solution is?

  • @Sbk3824
    @Sbk3824 4 года назад

    Commercially sodium bicarbonate is known as ?

  • @hrudyack93
    @hrudyack93 4 года назад

    Process of absorption of moisture from air?

  • @sreejithmj7116
    @sreejithmj7116 4 года назад

    Which phosphorus glows in the dark due to

  • @shyjushyju868
    @shyjushyju868 4 года назад +1

    The ph of human blood?

  • @akshayjkumar8082
    @akshayjkumar8082 4 года назад

    1st organic compound synthesis in laboratory??

  • @muhammedilyas6366
    @muhammedilyas6366 3 года назад +1

    Who invented Ph scale?

  • @ajithas7487
    @ajithas7487 4 года назад +1

    First atomic power station in India

  • @jibinjayakumar5857
    @jibinjayakumar5857 4 года назад

    Acid rain caused by???

  • @harikrishnan4980
    @harikrishnan4980 3 года назад

    father of modern chemistry?

  • @vishnuraj2127
    @vishnuraj2127 4 года назад +1

    Who is the father of periodic table?

  • @jobinjoshy8908
    @jobinjoshy8908 4 года назад +1

    99th element in the perodic table?

  • @soneshks
    @soneshks 4 года назад

    Chemical name of chloroform. ?

  • @smruthisudev
    @smruthisudev 4 года назад

    Functional group present in alcoholes?

  • @midhunm5493
    @midhunm5493 4 года назад

    The inner transition elements are found in ___ block

  • @vishnuhari023
    @vishnuhari023 4 года назад

    Ph of rain water during acid rain?

  • @shyamprasad2414
    @shyamprasad2414 4 года назад

    Steel contains?
    Iron and carbon

  • @lekshmi_ind
    @lekshmi_ind 4 года назад

    When hydrogen starts burning in air, it produces?

  • @akhilnathpg2250
    @akhilnathpg2250 4 года назад

    material used for making bulletproof jacket?

  • @hooriya123
    @hooriya123 4 года назад

    When two liquid material do not mix with each other and do not make solution, then they are called?

  • @ajeeshbalan4392
    @ajeeshbalan4392 4 года назад

    Tear gas is

  • @sooraj1729
    @sooraj1729 4 года назад

    who named hydrogen gas ?
    Lavosie

  • @vishnuhari023
    @vishnuhari023 4 года назад

    What is the chemical formula of dichloro difluro methane?

  • @sreelakshmisnair2842
    @sreelakshmisnair2842 4 года назад +3

    Sorry for the the intervention... 😛
    Ntpc exam dec 15 muthal nadakkumennathil samshayam kaanunnu... Shariyano?

  • @hdstudio3867
    @hdstudio3867 4 года назад

    Physics numeric problems website il undo

  • @sreedevibhargavan2516
    @sreedevibhargavan2516 4 года назад

    KMNO4 potassium manganate allae

  • @amalaprakash3513
    @amalaprakash3513 4 года назад

    Melting point of tungsten