NEET PRACTICE · Chemistry
Some Basic Concepts of Chemistry
484 practice questions for NEET Practice — 153 easy · 291 medium · 40 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
Calculate the mass of potassium chlorate required to liberate $6.72$ dm$^3$ of oxygen at STP. [Molar mass of potassium chlorate $= 122.5$ g mol$^{-1}$]
MCQ
Find the mass of lime obtained by heating 500 g of $90\%$ pure lime stone. [Molar masses $\text{Ca}=40$ g/mol, $\text{O}=16$ g/mol $\&$ $\text{C}=12$ g/mol]
MCQ
What is the number of moles of Cl atoms present in n moles of tear gas and in n moles of mustard gas respectively?
MCQ
Which of the following gases has high vapour density at same temperature and pressure?
MCQ
A coordination complex contains $2.6\ \%$ of Mg. Find the number of Mg atoms in $5.0$ g of this sample. (gram atomic mass of Mg $= 24$ g)
MCQ
Which of the following compounds has maximum number of molecules ?
MCQ
Find the mass of 1 molecule of $\text{H}_2\text{SO}_4$ in grams?
MCQ
Calculate the total mass and number of molecules present in 3 moles of benzene?
MCQ
Calculate the number of moles and molecules of chlorine in $4.48\ \text{dm}^3$ of chlorine at STP?
MCQ
What is the gram atomic mass of an element whose mass of one atom is $3.9853 \times 10^{-23}\ \text{g}$?
MCQ
Calculate the number of atoms in 52 moles of argon?
MCQ
Calculate the number of carbon atoms present in $11$ g of carbon dioxide?