Chemistry
Name:
(a) Two carbonates which do not produce carbon dioxide on heating.
(b) A colourless gas which bleaches
(c) Gases which have sour taste
(d) Greenish yellow gas which also bleaches
(e) Gas with rotten egg smell.
Related Questions
(a) Give only one suitable chemical test to identify the following gases.
(i) Ammonia
(ii) Sulphur dioxide
(iii) Hydrogen chloride
(iv) Chlorine
(v) Carbon dioxide
(vi) Oxygen
(vii) Hydrogen
(b) Select a basic gas mentioned in Q. 1(a). How is the basic nature suspected?
(c) Select acidic gases from the gases mentioned in Q. 1 (a). How is the acidic nature suspected?
(d) The two gases A and B are bleaching agents. A is greenish yellow and bleaches due to it's oxidising property while B a colourless gas bleaches due to reduction. Identify A and B.
(e) Which gas turns blue cobalt chloride paper light pink?
Give one similarity in test between (i) Cl2 and HCl (ii) SO2 and CO2.
Name the gases which
(a) extinguishes burning wooden splinter.
(b) turns moist red litmus blue.
(c) do no effect on moist litmus.
(d) affect the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Carbon dioxide and sulphur dioxide gas can be distinguished by using
(i) moist blue litmus paper
(ii) lime water
(iii) acidified potassium dichromate paper
(iv) none of the above.
The salt which in solution gives a pale green precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution is :
- Iron (III) sulphate
- Iron (II) sulphate
- Iron (II) chloride
- Iron (III) chloride