Chemistry Quiz Part 1

 1.       Which chemical is called quick lime?

1)      CaO

2)      Ca(OH)2

3)      CaCl2

4)      CaCO3

The correct answer is Option (1).

2.       Which chemical is called slaked lime?

 

1)      CaCO3

2)      Ca(OH)2

3)      Na2CO3

4)      NaOH

The correct answer is Option (2).

3.       Which chemical is called Milk of magnesia?

 

1)      MgCl2

2)      Mg(OH)2

3)      MgO

4)      MgMe2

The correct answer is Option (2).

4.       B2H6 is an example of?

 

1)      Closo borane

2)      Nido borane

3)      Arachno borane

4)      Hypho borane

The correct answer is Option (2).

5.       B4H10 is an example of?

 

1)      Closo borane

2)      Nido borane

3)      Arachno borane

4)      Hypho borane

The correct answer is Option (3).

 

6.       Which chemical is called fools gold?

 

1)      ZnS

2)      HgS

3)      FeS2

4)      PbS

The correct answer is Option (3).

7.       What is the chemical formula for Gypsum?

 

1)      CaSO4.2H2O

2)      BaSO4

3)      MgSO4.7H2O

4)      Na2SO4

The correct answer is Option (1).

The chemical formula for Gypsum is CaSO4.2H2O and the chemical name for Gypsum is calcium sulfate dihydrate.

8.       What is the chemical formula for Epsom salt?

 

1)      CaSO4.2H2O

2)      Na2SO4

3)      MgSO4.7H2O

4)      BaSO4

The correct answer is Option (3).

The chemical formula for Epsom salt is MgSO4.7H2O and the chemical name for Epsom salt is Magnesium sulfate heptahydrate.

9.       What is the chemical formula for Caro’s acid?

 

1)      H2SO5

2)      H2SO4

3)      H2S2O8

4)      H2SO3

The correct answer is Option (1).

10.   What is the chemical formula for Marshell acid?

 

1)      H2S2O6

2)      H2SO4

3)      H2S2O8

4)      H2SO3

The correct answer is Option (3).