quiz

Some Basic Concepts of Chemistry Quiz-4

Answer these simple questions correctly and earn coins

Difficulty Level :
10 Question

Popular Questions In Some Basic Concepts of Chemistry Quiz-4

  • One litre of N/2 HCl solution was heated in a beaker. When volume was reduced to 600 mL, 3.25 g of HCl was given out. The new normality of solution is :

  • The hydrated salt Na2SO4.nH2ONa_2SO_4.nH_2O, undergoes 55% loss in weight on heating and becomes anhydrous. The value of n will be :

  • The total ionic strength (total molarity of all ions) of a solution which is 0.1M of CuSO4CuSO_4 and 0.1M of Al2(SO4)3Al_2(SO_4)_3 is :

  • The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 atoms in 12g carbon sample :

  • 500 mL of NH3NH_3 contains 6.00×10236.00 \times 10^{23} molecules at N.T.P. How many molecules are present in 100 mL of CO2CO_2 at N.T.P.?

  • What will be the volume of the mixture after the reaction? NH3(g,1L)+HCl(g,1.5L)NH4Cl(s)NH_3(g,1L) + HCl (g,1.5L)\longrightarrow NH_4Cl(s)

  • What volume of hydrogen gas at 273K and 1atm pressure will be consumed in obtaining 21.6g of elemental boron (atomic mass = 10.8g) from the reduction of boron trichloride by hydrogen

  • The number of water molecules present in a drop of water (volume 0.0018 mL) at room temperature is :

  • 7.5 grams of gas occupy 5.6 litres of volume at NTP. The gas is :

  • For the formation of 3.65g of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at N.T.P. conditions?