Addition of 2% gypsum in cement________________?

Related Mcqs:

1. Gypsum is applied to the soil as a source of________________?

   A. Ca and P
   B. S and P
   C. Ca and S
   D. we could not apply

2. Gypsum is______?

   A. CaSO4
   B. CaSO4.1/2H2O
   C. CaSO4,2H2O
   D. CaSO4.3H2O

   Submitted by: Muhammad Ali Kunbhar

3. By the addition of base in waterpH will be_______________?

   A. more than 7
   B. less than 7
   C. equal to 7
   D. no effect

4. Addition of CH3COOH and CH3COONa gives in water_______________?

   A. Standard solution
   B. buffer solution
   C. acidic buffer solution
   D. both B & C

5. Equilibrium state is achieved quickly by the addition of ________________?

   A. reactants
   B. acid
   C. base
   D. catalyst

6. Addition of urea to the soil is ____________ reaction?

   A. endothermic
   B. exothermic
   C. both a and b
   D. no heat energy is involved

7. The addition of a catalyst to the reaction system__________________?

   A. Increases the rate of forward reaction only
   B. Increases the rate of reverse reaction
   C. Increases the rate of forward but decreases the rate of backward reaction
   D. Increases the rate of forward as well as backward reaction equally

8. Addition of 2nd electron to a uni negative ion is always____________________?

   A. Exothermic
   B. Endothermic
   C. Data is insufficient
   D. Unpredictable

9. Which of the following will not give addition reaction with NaHSO3________________?

   A. HCHO
   B. CH3CHO
   C. CH3-CH2-CHO
   D. None of the above

10. Ncleophilic addition reactions are catalysed__________________?

    A. Acid
    B. Base
    C. Both A and B
    D. None