How many moles are in 22.2 grams of Calcium chloride, CaCl2?

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. A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

   A. 74% Fe
   B. 75% Fe
   C. 77% Fe
   D. 78% Fe

   Submitted by: Muhammad Ali Kunbhar

3. What will be the PH of  0.01M ammonium chloride solution containing 10 mol per liter of ammonium chloride (pkb=4.76)?

   A. 5.24
   B. 6.24
   C. 7.24
   D. 8.24 

   Submitted by: Said wali shah

4. The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?

   A. oxidizing agent
   B. reducing agent
   C. drying agent
   D. colouring agent

5. Percentage of calcium in calcium carbonate is___________________?

   A. 80%
   B. 30%
   C. 40%
   D. 20%

6. Ethy1 chloride on reduction in the presence of Zn/HCI produces___________________?

   A. n. butane
   B. Ethanol
   C. Ethane
   D. Diethy1 ether

7. Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

   A. PdCl2
   B. Cu2Cl2
   C. CuCl2
   D. PbCl2

8. Ammonia may be prepared by heating ammonium chloride with_______________?

   A. Water
   B. NaCl
   C. Aqueous sodium hydroxide
   D. H2SO4

9. Ethyl chloride with nascent hydrogen produces_________________?

   A. methane
   B. ethane
   C. propane
   D. butane

10. The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______?

    A. 0.12g
    B. 0.16g
    C. 0.18g
    D. 0.24g

    Submitted by: Muhammad Ali Kunbhar