Metals and Non-metals Foundation CUET CBSE questions

CBSE - Metals and Non-metals

 

Metals and Non-metals 

The metal which does not react with cold as well as hot water but reacts with steam is

(1) Cu 
(2) Zn 
(3) Na 
(4) Fe

 

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 4

Solution :

-.

 

Metals and Non-metals 

Bauxite is an ore of aluminium. It is concentrated suitably on treating with

(1) Conc. NaOH solution
(2) Na2CO3
(3) Coke and N2
(4) Any of the above

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 1

Solution :

-.

 

Metals and Non-metals 

A metal is strongly heated in presence of air to form a black mass. So the metal is

(1) Potassium
(2) Platinum
(3) Copper
(4) Zinc

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 3

Solution :

-.

 

Metals and Non-metals 

Calamine ore can be converted into ZnO by the process of.

(1) Dehydration
(2) Roasting
(3) Calcinations
(4) Sulphonation

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 3

Solution :

-.

 

Metals and Non-metals 

The molecular formula of potash alum is 

(1) K2SO4.Al2(SO4)3.24H2O
(2) Ca(OCl)Cl
(3) )K2SO4
(4) Al2(SO4)3.24H2O

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 1

Solution :

-.

 

Metals and Non-metals 

Which of the following compounds is bad conductor of electricity?

(1) Ionic compound
(2) Electrovalent compound  
(3) Covalent compound
(4) None of these

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 3

Solution :

-.

 

Metals and Non-metals 

Which of the following gas is known as tear gas ?

(1) methyl isocyanide
(2) sulphur dioxide
(3) chloropicrin
(4) nitrous oxide

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 3

Solution :

-.

 

Metals and Non-metals 

The impurity present in the ore is called ..........

(1) gangue
(2) flux
(3) slag
(4) mineral

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 1

Solution :

-.

 

Metals and Non-metals 

Consider the following pairs of elements : 

I and H , C and F,  Ba and F,  N and F,  K and O 

The correct statement regarding these pairs is : 

(1) The two pairs Ba and F, K and O most likely to form Ionic bonds 
(2) The least polar bond is formed between C and F 
(3) Bet ween I and H an ionic bond is formed 
(4) Between N and F the covalent bond is most polar

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 1

Solution :

-.

 

Metals and Non-metals 

Which of the following always contains mercury as one of the constituent ?

(1) Stainless steel
(2) Solder
(3) Duralumin
(4) Zinc Amalgam

A. Option 1
B. Option 2
C. Option 3
D. Option 4
 
 

Option: 4

Solution :

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