One mole of ${\mathrm{H}}_2\mathrm{O}$ corresponds to ________

Important Questions on Some Basic Concepts of Chemistry

MEDIUM

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IMPORTANT

Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 31

$1 \mathrm{g}$ atom of nitrogen represents ___________.

EASY

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IMPORTANT

Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 32

 How many moles of electrons weigh one kilogram? 

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 33

Which of the following has the maximum number of atoms?

HARD

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IMPORTANT

Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 34

The number of sulphur atoms present in $0.2$ moles of ${\mathrm{S}}_8$ molecule is _________________________.

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 35

The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is $1:4$. The ratio of their number of molecules is

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Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 36

The weight of $112 \mathrm{mL}$ of oxygen at $\mathrm{NTP}$ on liquefaction would be

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IMPORTANT

Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 37

The number of moles of sodium oxide in $620 \mathrm{g}$ is _______.

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IMPORTANT

Chemistry Crash Course MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 1>Q 38

The number of water molecules in $1$ litre of water is __________