The number of moles of CO2 which contains 16 g of oxygen is__________________?

Related Mcqs:

1. When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?

   A. 2 moles of ethane
   B. 1 mole of ethane
   C. 2 moles of butane
   D. 1 mole of butane

2. moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?

   A. 0.18 mole
   B. 0.27 mole
   C. 0.24 mole
   D. 0.09 mole

3. One mole of CO2 contains?

   A. 6.022 x 1023 atoms of oxygen
   B. 22-gram electrons
   C. 6.022 x 1023 atms of carbon
   D. both B. & C.

4. Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?

   A. one / seventeen
   B. sixteen / seventeen
   C. one / three
   D. two / three

5. If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?

   A. C2H2O4
   B. CH2
   C. CH2O
   D. CHO2

   Submitted by: Raza Samejo

6. When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ?

   A. 0.5
   B. 1
   C. 1.5
   D. 2

7. Number of moles in 1 kg of solvent is called_________________?

   A. normality
   B. molarity
   C. molality
   D. mole fraction

8. The hydrolysis of Benzenetrizonide will yield three moles of____________________?

   A. Glyoxime
   B. Benzaldehyde
   C. Glycol
   D. Glyoxal

9. When 0.01 moles of NaOH are added to a buffer solution, its PH changes from 4.745 to 4.832. What is its?

   A. 0.115
   B. 0.900
   C. 0.015
   D. 0.215

   Submitted by: Muhammad Ali Kunbhar

10. The mass of 3.2 moles of ammonia (NH3) gas?

    A. 53.4 grams
    B. 54.4 grams
    C. 55.4 grams
    D. 56.4 grams

    Submitted by: Muhammad Ali Kunbhar