P-Block Elements Group 13 to 18-Group 15 (NEET Chemistry): Questions 1 - 6 of 10

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 677 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

Question number: 1

» P-Block Elements Group 13 to 18 » Group 15 » Phosphorus

MCQ▾

Question

The state of hybridization of the central atom and the number of lone pairs over the central atom in POCl3 are?

Choices

Choice (4) Response

a.

dSP2,0

b.

SP3,0

c.

SP,0

d.

SP2,0

Question number: 2

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

MCQ▾

Question

Extra pure nitrogen can be obtained by heating?

Choices

Choice (4) Response

a.

NH3withCuO

b.

Ba(N3)2

c.

NH4NO3

d.

(NH4)2Cr2O7

Question number: 3

» P-Block Elements Group 13 to 18 » Group 15 » Oxides and Oxoacids of Phosphorus

MCQ▾

Question

One mole of H3PO3 on reaction with excess of NaOH gives?

Choices

Choice (4) Response

a.

One mole of Na2HPO3

b.

One mole of Na3PO3

c.

Two moles of Na2HPO3

d.

Two moles of Na2H2PO3

Question number: 4

» P-Block Elements Group 13 to 18 » Group 15 » Phosphorus

MCQ▾

Question

White phosphorus on reaction with limewater gives calcium salt of an acid (A) along with a gas (X). Which of the following is correct?

Choices

Choice (4) Response

a.

(X) is more basic than ammonia

b.

(A) on heating gives (X) and O2

c.

The bond angle in (X) is less than that in case of ammonia

d.

(A) is dibasic acid

Question number: 5

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

MCQ▾

Question

If O2 is removed from the formula of anhydride of HNO2, then the formula of the resulting compound satisfies which of the following properties?

Choices

Choice (4) Response

a.

It supports combustion

b.

It cannot react with red hot copper

c.

It produces tears in eyes

d.

It is paramagnetic

Question number: 6

» P-Block Elements Group 13 to 18 » Group 15 » Oxides and Oxoacids of Phosphorus

MCQ▾

Question

The equivalent mass of phosphoric acid in the reaction, NaOH+H3PO4NaH2PO4+H2O ?

Choices

Choice (4) Response

a.

98

b.

59

c.

25

d.

49

Sign In