Write the balanced chemical equations for the following reactions
and identify the type of reaction in each case
(a) Nitrogen gas is treated with hydrogen gas in the presence of a
catalyst at 773K to form ammonia gas.
(b) Limestone is heated strongly to form quicklime and
carbondioxide gas is evolved

NCERT Class X
Science - Exemplar Problems

Chapter_SAMPLE QUESTION PAPER-I

1

Answers

2015-05-31T15:23:02+05:30
(a) N₂+3H₂(₇₇₃K)⇒2NH₃(g)↑
(b) CaCO₃ Δ⇒CaO+CO₂(g)↑
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