Gypsum is______?

Related Mcqs:

1. The type of hybridisation of boron in diborane is______?

   A. Sp- hybridisation
   B. Sp2- hybridisation
   C. Sp3- hybridisation
   D. Sp3d2- hybridisation

   Submitted by: Muhammad Ali Kunbhar

2. Value of normal atmospheric pressure at sea level at 0°C is______?

   A. 1 atm
   B. 760 Torr
   C. 76cm of Hg
   D. All of these 

   Submitted by: Zahid Jagirani

3. 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

4. Addition of 2% gypsum in cement________________?

   A. Triggers hydration
   B. Triggers hydrolysis
   C. Prevents rapid hardening
   D. all of the above

5. Which of the following terms is used for the mass of chlorine 35.5 ?

   A. relative atomic mass
   B. mass number
   C. atomic weight
   D. relative isotopic mass

6. 1 mole of electron has mass in microgram_________________?

   A. 1.008 x 10-3
   B. 5.5 x 10-4
   C. 1.84 x 10-4
   D. 1.673 x 10-3

7. Acid present in acid rain may be_________________?

   A. H2SO4
   B. HNO3
   C. both A and B
   D. none of the above

8. Water absorber used in combustion analysis is___________________?

   A. 50% KOH
   B. Lime water
   C. CaCl2
   D. Mg (CIO4)2

9. The bond energy of Hydrogen molecule is__________?

   A. 110Kcal/mol
   B. 106Kcal/mol
   C. 104Kcal/mol
   D. 150KJcal/mol

   Submitted by: Aamir khan Hullio

10. The product of the reaction between steam and Hydrocarbon in presence of Ni catalyst at 900°C is _____.

    A. CO²+O²
    B. CO+H²(water gas)
    C. CO³+H²O
    D. Laughing Gas

    Submitted by: Aamir khan Hullio