Home Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General How many of the following statements are cor…
Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General Numeric Response
Published on: August 13, 2026

How many of the following statements are correct ?

A
BeO is amphoteric in nature.
B
LiHCO 3 is not found in solid state.
C
K 2 O 2 is diamagnetic but KO 2 is paramagnetic.
D
White phosphorous react with castic soda and gives phosphine gas. (e) AlCl 3 is soluble in excess of NaOH and form sodium meta aluminate. (f) Anhydrous potassium nitrate on heating with potassium metal gives potassium oxide and nitrogen gas. (g) Lithium chloride is highly soluble in water. (h) Hydrated magnesium chloride on heating in dry air gives anhydrous MgCl 2 .

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Text Solution

Verified by Experts
The correct answer is:
6

(6)

, , , , (e) & (f) are correct.

BeO is amphoteric in nature becuase it reacts with acid as well as base.

LiHCO 3 Li 2 CO 3 + H 2 O + CO 2

H 2 O + NaOH + P 4 NaH 2 PO 2 + PH 3

(e) AlCl 3 + 4NaOH (excess) NaAlO 2 + 2H 2 O + 3NaCl

(f) KNO 3 + K K 2 O + N 2

(h) MgCl 2 .6H 2 O MgO + HCl + H 2 O.

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