KC+CET PYQs for Mole Concept and Molar Masses with Solutions: Practice KCET Previous Year Questions

Updated on - Feb 16, 2026

Mole Concept and Molar Masses is an important topic in the Chemistry section in KCET exam. Practising this topic will increase your score overall and make your conceptual grip on KCET exam stronger.

This article gives you a full set of KCET PYQs for Mole Concept and Molar Masses with explanations for effective preparation. Practice of KCET Chemistry PYQs including Mole Concept and Molar Masses questions regularly will improve accuracy, speed, and confidence in the KCET 2026 exam.

KCET PYQs for Mole Concept and Molar Masses with Solutions

1.
The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______
- $1.292\, kJ$
- $2.292\, kJ$
- $3.392\, kJ$
- $0.292\, kJ$
View Solution
2.
4 g of a hydrated crystal of formula AxH$_2$O has 0.8 g of water. If the molar mass of the anhydrous crystal (A) is 144 g mol$^{-1}$, x value is
- 4
- 1
- 2
- 3
View Solution
3.
The percentage of $s$-character in the hybrid orbitals of nitrogen in $NO^+_2, NO^-_3$ and $NH_4^+$ respectively are
- 33.3%, 50%, 25%
- 33.3%, 25%, 50%
- 50%, 33.3%, 25%
- 25%, 50%, 33.3%
View Solution
4.
The number of gram molecules of chlorine in $6.02 \times 10^{25}$ hydrogen chloride molecules is -
- 5
- 50
- 100
- 10
View Solution

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KCET PYQs for Mole Concept and Molar Masses with Solutions

1.The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______

2.4 g of a hydrated crystal of formula AxH$_2$O has 0.8 g of water. If the molar mass of the anhydrous crystal (A) is 144 g mol$^{-1}$, x value is

3.The percentage of $s$-character in the hybrid orbitals of nitrogen in $NO^+_2, NO^-_3$ and $NH_4^+$ respectively are

4.The number of gram molecules of chlorine in $6.02 \times 10^{25}$ hydrogen chloride molecules is -

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1.
The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______

2.
4 g of a hydrated crystal of formula AxH$_2$O has 0.8 g of water. If the molar mass of the anhydrous crystal (A) is 144 g mol$^{-1}$, x value is

3.
The percentage of $s$-character in the hybrid orbitals of nitrogen in $NO^+_2, NO^-_3$ and $NH_4^+$ respectively are

4.
The number of gram molecules of chlorine in $6.02 \times 10^{25}$ hydrogen chloride molecules is -