Certain blank spaces are left in the following table and these are labelled as A, B, C, D and E. Identify each of them.

ICSE Class 10 Chemistry PYQ · 2017 Paper · Section II

4(a)Written · 2017 · Section II · 2017 Paper

Certain blank spaces are left in the following table and these are labelled as A, B, C, D and E. Identify each of them.

Lab preparation ofReactants usedProducts formedDrying agentMethod of collection
HCl gasNaCl + H2SO4AConc. H2SO4B
NH3 gasCMg(OH)2, NH3DE
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A : Sodium hydrogen sulphate (NaHSO4) and HCl gas.

B : Upward displacement of air.

C : Magnesium nitride (Mg3N2) and water (H2O).

D : Quick lime [CaO]

E : Downward displacement of air.

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