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ICSE Objective Chemistry: Quiz 2

Name a gas which is liberated when concentrated sulphuric acid reacts with oxalic acid.

A coloured gas obtained from two colourless gases.

Name a metal which is extracted by reduction of its oxide with coke.

Name a gas which in the liquid state has a high latent heat of vaporization and hence used as a refrigerant.

Which solid evolves a coloured gas on prolonged exposure to air?

Name a gas liberated when iron reacts with dilute sulphuric acid.

Which organic compound is a non-electrolyte.

Name a covalent acidic gas which ionizes in aqueous solution.

Name an ammonia compound which when heated leaves no residue.

Name the neutral gas obtained when excess of ammonia reacts with chlorine.

Name the liquid obtained when ammonia is passed over heated lead monoxide.

Which acidic gas tends to poison the catalyst, used in Haber’s process?

Which acid dissolves zinc but not platinum?

Name the gas obtained when zinc reacts with concentrated nitric acid.

Name a base which is amphoteric in nature.

Name a neutral gas liberated when an active metal reacts with dilute acid.

Name a base or an alkali which is used as a foaming agent in fire extinguishers.

Name a normal salt obtained from a basic salt.

Name an alkali which reacts with an acidic gas forming a salt insoluble in water.

Name an acid other than hydrochloric and nitric which is prepared in the laboratory using sulphuric acid.

Name a salt solution which gives a green precipitate with sodium hydroxide.

With reference to the electroplating of an article with silver. What ion must be present in the electrolyte?

Name an acidic solution which contains ions and molecules.

Name a covalent compound which becomes electrovalent when dissolved in water.

Name the type of bonding in which shared pair of electrons is denoted by only one atom only.

Name a metallic chloride which is soluble in hot water but insoluble in cold water.

Name a metal which does not form an oxide at any temperature

Name a metal that has a low boiling point

Name a hygroscopic base.

Name a basic oxide obtained on thermal decomposition of the flux used in the metallurgy of iron from haematite.

Name a basic oxide which reacts with an acidic oxide to give a salt

Name a non-metal which forms a stable compound with hydrogen.

A covalent compound obtained when ammonia is dissolved in a neutral liquid.

Name a strong base of a monovalent metal.

Name a non metal which is used in the manufacture of electrodes.

Name a metal which is radioactive and used in chemotherapy.

Name the product obtained at the anode on electrolysis of molten sodium chloride.

Name a non-metallic oxide not used as a drying agent for HCl gas.

Name a hydrocarbon which is insoluble in water but soluble in organic solvents.

Name a hydrocarbon which is also a good fuel

Which hydrocarbon is also a source of carbon monoxide and hydrogen?

Name a hydrocarbon prepared by heating a mixture of ethanol and conc. Sulphuric acid.

Name the product formed by the catalytic hydrogenation of ethene.

Name the hydrocarbon which is linear molecule.

Name the product of the reaction between ethene and chlorine.

Name a metal which is trivalent and forms an acidic oxide.

Which metal is used to cover underground telephone cables and wire systems?

Name a fertilizer manufactured using sulphuric acid.

Name a base or an alkali that is used as an antacid to neutralize the enhanced acidity.

Name the gas liberated when a strong caustic alkali solution reacts with aluminum.

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42 Responses to “ICSE Objective Chemistry: Quiz 2”

  1. sunita says:

    Sir/Madam……1).the non metal used to manufacture electrodes is Graphite & not Carbon….
    2)what ion must be present in electrolyte….Plz make the question clear….
    though the answer is Silver…I’m little confused…
    If I’m wrong please correct me & explain…
    Thnx in advance….

  2. admin says:

    Thanks Sunita. Those were mistakes. Thank you very much for finding them. The questions are already rectified.
    Thanks again..

  3. Aaditya says:

    in the question: name the type of bonding in which shared pair of electrons is donated by one atom only;
    the answer should be coordinate bond,but it is not given.

  4. admin says:

    You are right. A co-ordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. So you can very well mention covalent bonding as co-ordinate bonding is a type of covalent bonding only. Hope this is clear..

  5. Sindhura says:

    awesome quiz …. thanks a ton it helped me a lot …. :) i hope some of these questions will come in tomorrow’s paper ….

  6. Sakhi says:

    Hi Sir,

    How can sodium hydroxide react with an acidic gas to form an insoluble salt since all sodium salts are soluble??
    Also, methane is also used as a fuel – better known as gobar gas?

    Also, what is a linear molecule?

  7. Moomi says:

    Name a non-metal which forms a stable compound with H2 & the options given r
    im confused …… plz clear my doubt

  8. adi says:

    Which acidic gas tends to poison the catalyst, used in Haber’s process?
    1.Carbon dioxide
    2.sulphur dioxide

    it’s supposed to be Carbon di oxide……..

  9. admin says:

    Moomi, The options were wrongly typed. It is rectified now. Thanks for bringing it to our notice.

  10. admin says:

    The Q says NaOH reacting with a salt solution. Ferrous sulphate on reacting will form Ferrous hydroxide which is a green ppt.

    Methane is the right answer, there was a typo.

    Linear molecule: A molecule whose atoms are arranged so that the bond angle between each is 180

  11. admin says:

    No.. Sulphur impurities poison the catalyst..

  12. Sarthak Sharma says:

    That’s good for revision and checking our ability.

  13. sunita says:

    which oxide out of gold and platinium does not form oxide at any temprature. none of them form sir…………….plz recheck

  14. admin says:

    Gold forms Au2O3 at very high temperature and it is more stable than Au2O

  15. Abir Ghosh says:

    The quiz is great……………I hope some of the questions show up in tomorrow’s paper……Only one doubt…………..How sodium hydroxide reacts with an acidic gas to form a insoluble salt????? All sodium salts are soluble……..But Calcium hydroxide reacts with an acidic gas, carbon dioxide, to form calcium carbonate which is insoluble. Are you sure the answer is sodium hydroxide??????? Pls clarify my doubt at your earliest.

  16. Anandi says:

    great quiz!! :)

  17. admin says:

    There is a question which asks “Name a salt solution which gives a green precipitate with sodium hydroxide”. Can you tell us the question number you are referring to.

  18. sunita says:

    sir……….. the question: name an alkali reacts wid an acidic gas to form a salt insoluble in water is calcium hydroxide……………………if i’m wrong plz correct me……….thnx

  19. Sakhi says:

    Q. 19

    Name an alkali which reacts with an acidic gas forming a salt insoluble in water.

    * Sodium hydroxide
    * Calcium hydroxide

    2NaOH + SO2 (for example) – Na2SO3 + H20
    The salt is soluble, as all salts of Na are. But CaS03 (to use the same example) is insoluble. That is why lime water turns milky when sulphur dioxide is passed through it.

  20. sid says:

    that was awesomeeeeeeeee

  21. admin says:

    u r right

  22. admin says:

    Ca(OH)2 and CO2

  23. shobana says:

    sir/madam plz explain for me the question
    state why the candle gets extinguished after sometime and not immediately???
    plz make the question ?

  24. shobana says:

    Name a gas which is liberated when concentrated sulphuric acid reacts with oxalic acid.
    im confused
    plz make the question clear

  25. admin says:

    Hi Shobana,
    Please click here
    to post your questions.

  26. Yatharth Khandelwal says:

    good quiz…..i liked it…it was quite tough….but it was good

  27. butool says:

    good qiiz

  28. suhas says:

    greeeaaaaat quiz

  29. uop says:

    what is the process to give the iupac name of a hydrocarbon say c2h4

  30. vijay kumar says:

    amazing experience

  31. bala guru says:

    this revision had improved me a lot .i thank the creator

  32. uos says:

    1.) how can NaOH give an insoluble salt?
    2.) Bromine oxide is used as a drying agent for hcl ?

  33. sumith says:

    hope i get same qustions i n exm

  34. Abdeali says:

    Wow awesome quiz i enjoyed……..
    but sum questions were difficult.

  35. Abdeali says:

    Sumith u will get dont worry

  36. ashish says:

    sir,plz make me under stand all reaction based questions.i am not able to get them.i will be thankful to u 4 this act of kindness.and a nice quiz sir

  37. abhigyan shukla says:

    good papers

  38. sagar says:

    best quiz for every class 10th stdents espcially cbse

  39. anu says:

    sir/madam tis was a nice revision but a little confusin tooo i am till in 7 so i shall improve

  40. puja ghosh says:

    nice paper sir

  41. upapaupops says:

    Sir / Madam, The questions are good & useful speacially for I.C.S.E. all candidates !!

  42. Rex Edward says:

    Which of these burns without leaving any residue, ammonium nitrate and amonium sulphate

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