The masses of carbondioxide and water (in g) respectively formed during complete combustion of 10 g of glucose at STP are

Enthalpy of formation of $\mathrm{CO}(g), \mathrm{CO}_2(g)$ are -110 , $-393 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively. The enthalpy of combustion of CO (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) is

At $T(\mathrm{~K})$ when one mol of $X$ and one mol of $Y$ are heated in a 1 L flask, 0.5 moles of $Z$ is formed at the equilibrium. The $K_C$ value of the reaction is

$$ X(g)+Y(g) \rightleftharpoons Z(g)+A(g) $$

Identify the correct statements about the hydrides.

I. In saline hydrides oxidation state of hydrogen is +1 .

II. La H is an example of interstitial hydride.

III. $\mathrm{NH}_3, \mathrm{H}_2 \mathrm{O}$ have the tendency to form hydrogen bonds.

IV. Electrolysis of molten sodium hydride liberates $\mathrm{H}_2$ gas at cathode.