Sodium chloride imparts a golden yellow colour to the Bunsen flame. This can be interpreteted due to:

(a) low ionisation potential of sodium

(b) photosensitivity of sodium

(c) sublimation of metallic sodium to give yellow vapour

(d) emmission of excess of energy absorbed as a radiation in the visible region.

Concept Questions :-

Physical Properties & Characteristics
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Caustic soda is:

(a) efflorescent

(b) deliquescent

(c) hygroscopic

(d) oxidant

Concept Questions :-

Some Important Compounds of Na
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The most basic oxide among the following is:

(a) Na2O

(b) BaO

(c) As2O3

(d) Al2O3

Concept Questions :-

Chemical Properties
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Pearl ash and caustic potash are chemically:

(a) K2CO3 and KOH

(b) KOH and K2CO3

(c) Na2CO3 and KOH

(d) Na2CO3 and NaOH

Concept Questions :-

Some Important Compounds of Na
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The most dangerous method of precipitating hydrogen would be by the action of HCl on:

(a) Zn

(b) Fe

(c) K

(d) Al

Concept Questions :-

Chemical Properties
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


 Na2COand NaHCO3 may be distinguished by treating their aqueous solution with:

(a) litmus solution

(b) dil. acid

(c) MgO

(d) MgSO4

Concept Questions :-

Chemical Properties
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which is industrially prepared by the electrolysis of aqueous NaCl?

(a) Na2CO3

(b) NaHCO3

(c) NaOH 

(d) NaOCl

Concept Questions :-

Chemical Properties
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The products of the electrolysis of concentrated aqueous solution of common salt are:

(a) Na + Cl2

(b) H2 + O2

(c) NaOH + H2 + Cl2

(d) NaOH + Cl2 + O2

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Sodium cannot be extracted by the electrolysis of brine solution because:

(a) sodium leberated reacts with water to produce NaOH+H2

(b) sodium being more electropositive than hydrogen, H2 is liberated at cathod and not sodium

(c) electrolysis cannot take place with brine solution

(d) none of the above

Concept Questions :-

Chemical Properties
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


KO2 is used in oxygen cylinder in space air craft and submarines because it:

(a) absorbs CO2 and increase O2 content

(b) eliminate moisture

(c) absorbs CO2

(d) produces O2

Concept Questions :-

Physical Properties & Characteristics
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: