Chemistry
State the following:
(a) A compound formed when excess ammonia gas reacts with chlorine.
(b) A substance added to water, to manufacture sulphuric acid in Contact process.
Sulphuric Acid
ICSE 2022
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Answer
(a) Ammonium chloride [NH4Cl]
(b) Oleum
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Draw the structural diagram of:
(a) pentanal
(b) propanol
(c) 2-butene
Complete and balance the following chemical equations:
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(b) C2H6 + O2 [excess] ⟶
(c) CH4 + O2 [excess] ⟶
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(b) Excess chlorine gas reacts with ammonia gas.
(c) Carbon reacts with hot concentrated nitric acid.
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(a) A compound reacts with an acid to form gas P which has no effect on acidified K2Cr2O7 solution but turns lime water milky.
(b) A metallic nitrate reacts on heating gives oxygen gas along with a coloured gas Q.