Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Hydrogen can be obtained from water, by the action of water on (1) calcium carbide (2) calcium hydride (3) calcium oxide (4) calciumA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: C
Solution :
\[Ca{{H}_{2}}+2{{H}_{2}}O\xrightarrow[{}]{{}}Ca{{(OH)}_{2}}+2{{H}_{2}}\uparrow \] \[Ca+2{{H}_{2}}O\xrightarrow[{}]{{}}Ca{{(OH)}_{2}}+{{H}_{2}}\uparrow \] Calcium carbide with water gives acetylene and calcium oxide with water gives calcium hydroxide.
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