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Important Questions on Hydrogen

HARD

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IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-2>Q 8

Water softening by Clark's process uses

EASY

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-2>Q 10

The lightest gas is :-

HARD

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-3>Q 4

Ortho-hydrogen and para-hydrogen resembles in which of the following property:-

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-4>Q 1

$100 \mathrm{kg}$ hard water contains $5 \mathrm{g} {\mathrm{MgSO}}_4$. Find hardness.

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-4>Q 2

One litre hard water contains $1 \mathrm{mg} {\mathrm{CaCl}}_2$ and $1 \mathrm{mg} {\mathrm{MgSO}}_4$. Find hardness.

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-4>Q 3

Calculate the hardness of water sample which contains $0.001 \mathrm{mol} {\mathrm{MgSO}}_4$ per litre of water.

MEDIUM

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-4>Q 6

(A) Draw the gas phase and solid phase structure of ${\mathrm{H}}_2{\mathrm{O}}_2$.
(B) ${\mathrm{H}}_2{\mathrm{O}}_2$ is a better oxidising agent than water. Explain.

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Beta Question Bank for Engineering: Chemistry>Chapter 15 - Hydrogen>EXERCISE-4>Q 7

Why is the Ionisation enthalpy of hydrogen higher than that of sodium?