List of top Chemistry Questions on Stoichiometry and Stoichiometric Calculations asked in BITSAT

How many moles of oxygen are required to completely combust 1 mole of propane (C\(_3\)H\(_8\))?

The normality of $26\%$ (wt/vol) solution of ammonia (density $= 0.855$ ) is approximately :

$1.25\, g$ of a sample of $Na _{2} CO _{3}$ and $Na _{2} SO _{4}$ is dissolved in $250\, ml$ solution. $25 ml$ of this solution neutralises $20\, ml$ of $0.1\, N\, H _{2} SO _{4}$. The $\%$ of $Na _{2} CO _{3}$ in this sample is

Formation of polyethylene from calcium carbide takes place as follows $ CaC _{2}+2 H _{2} O \longrightarrow Ca ( OH )_{2}+ C _{2} H _{2}$ $C _{2} H _{2}+ H _{2} \longrightarrow C _{2} H _{4} $ $ nC _{2} H _{4} \longrightarrow\left(- CH _{2}- CH _{2}-\right) n$ The amount of polyethylene obtained from $64.1\, kg$ of $CaC _{2}$ is

$3.92\,g$ of ferrous ammonium sulphate react completely with $50\, ml \frac{N}{10} KMnO_{4}$ solution. The percentage purity of the sample is

The enthalpy of combustion of $2$ moles of benzene at $27^{\circ} C$ differs from the value determined in bomb calorimeter by

$0.45 \,g$ of acid molecular weight $90$ is neutralised by $20\, ml$ of $0.5\,N$ caustic potash. The basicity of acid is

$1.5 \,g$ of $CdCl_2$ was found to contain $0.9 \,g$ of $Cd$. Calculate the atomic weight of $Cd$.

Match the following:

List-I		List-n (At STP)
(A)	$10 \, g \, CaCO_3 \xrightarrow [\text{decomposition}]{\Delta}$	(i)	$0.224 \, L \, CO_2$
(B)	$1.06 \, g \, Na_2 CO_3 \xrightarrow{\text{Excess HCl}}$	(ii)	$4.48 \, L \, CO_2$
(C)	$2.4 \, g \, C \xrightarrow [\text{combustion}]{Excess \, O_2}$	(iii)	$0.448 \, L \, CO_2$
(D)	$0.56 \, g \, CO \xrightarrow [\text{combustion}]{\text{Excess} O_2}$	(iv)	$2.24 \, L \, CO_2$
		(v)	$22.4 \, L \, CO_2$

The correct match is