The number of water molecules is maximum in:

Important Questions on Some Basic Concepts of Chemistry

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 14

The numbers of moles of ${\mathrm{BaCO}}_3$, which contains $1.5$ moles of oxygen atoms is

MEDIUM

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 15

The number of moles of oxygen in $1 \mathrm{L}$ of air containing $21\%$ oxygen by volume in standard conditions is_______

HARD

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 16

$1 \mathrm{mL}$ of water contains $20$drops. Then number of molecules of water in a drop will be:Enable GingerCannot connect to Ginger Check your internet connection
or reload the browserDisable in this text fieldRephraseRephrase current sentenceEdit in Ginger×

HARD

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 17

How many moles of lead $\left(\mathrm{II}\right)$ chloride will be formed from a reaction between $6.5 \mathrm{g} \mathrm{of} \mathrm{PbO}$ and $3.2 \mathrm{g} \mathrm{of} \mathrm{HCl}$ ?$\left(\mathrm{Given}: \mathrm{Molar} \mathrm{mass} \mathrm{of} {\mathrm{PbCl}}_2=278 \mathrm{g}/\mathrm{mol}, \mathrm{Molar} \mathrm{mass} \mathrm{of} \mathrm{PbO}=233 \mathrm{g}/\mathrm{mol}, \mathrm{Molar} \mathrm{mass} \mathrm{of} \mathrm{HCl} =36.5 \mathrm{g}/\mathrm{mol}\right)$

MEDIUM

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 18

The percentage of $\mathrm{Se}$ in peroxidase anhydrous enzyme is $0.5\%$by weight (atomic mass $= 78.4$). Then minimum molecular mass of peroxidase anhydrous enzyme is__________

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 19

The empirical formula of an acid is ${\mathrm{CH}}_2{\mathrm{O}}_2$, the probable molecular formula of acid may be_________

EASY

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 21

An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave $\mathrm{C}=38.71\%$, $\mathrm{H}=9.67\%$ and $\mathrm{O}=51.62\%$. The empirical formula of the compound would be

MEDIUM

MHT-CET

IMPORTANT

MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 1 - Some Basic Concepts of Chemistry>Competitive Thinking>Q 22

During electrolysis of water, the volume of ${\mathrm{O}}_2$ liberated is $2.24 {\mathrm{dm}}^3$. The volume of hydrogen liberated, under the same conditions will be