List of top Chemistry Questions on Stoichiometry and Stoichiometric Calculations asked in NEET (UG)

Among the following, choose the ones with an equal number of atoms.

  1. 212 g of Na2CO3 (s) [molar mass = 106 g]
  2. 248 g of NaNO3 (s) [molar mass = 62 g]
  3. 240 g of NaOH (s) [molar mass = 40 g]
  4. 12 g of H2 (g) [molar mass = 2 g]
  5. 220 g of CO2 (g) [molar mass = 44 g]

Choose the correct answer from the options given below:

1.0 g of H2 has the same number of molecules as in:
What mass of 95% pure \(CaCO_3\) will be required to neutralise 50 mL of 0.5 M \(HCl\) solution according to the following reaction?
\(CaCO_3(s) + 2HCl(aq) → CaCl_2(aq) + CO_2(g) + 2H_2O(l)\)
[Calculate upto second place of decimal point]
A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H2SO4 . The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be
The correct order of the stoichiometries of \(AgCl\) formed when \(AgNO_3\) in excess is treated with the complexes : \(CoCl_3.6NH_3, CoCl_3.5NH_3, CoCl_3.4NH_3\) respectively is
Which of the following is dependent on temperature?
An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated acid is 70% HNO3.
The number of atoms in $0.1$ mole of a triatomic gas is $(N_A = 6.023 \times 10^{23} \, mol ^{-1})$
The molecular weight of $O_2$ and $SO_2$ are 32 and 64 respectively. At $15^{\circ}C$ and 150 mmHg pressure, 1L of $O_2$ contains -N - molecules. The number of molecules in 2L of $SO_2$ under the same conditions of temperature and pressure will be