S-Block Elements Group 1 and 2-Trends in Physical and Chemical Properties (NEET Chemistry): Questions 1 - 6 of 12

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Question number: 1

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which of the following compounds of alkali metals decompose on heating?

Choices

Choice (4) Response

a.

KNO3

b.

Na2SO4

c.

K2CO3

d.

Na2CO3

Question number: 2

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which of the following statement is not true regarding the properties of alkali metal?

Choices

Choice (4) Response

a.

Halides and hydrides of beryllium do not polymerize

b.

BaO is soluble, but BaSO 4 is insoluble in water

c.

Alkali earth metals can’t be obtain by chemical reduction

d.

BeO insoluble, but BaSO 4 is soluble in water

Question number: 3

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which pair of following chloride do not impart colour to the flame?

Choices

Choice (4) Response

a.

CaCl2,MgCl2

b.

CaCl2,BaCl2

c.

SrCl2,BaCl2

d.

MgCl2,BeCl2

Question number: 4

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

A metal M readily forms water soluble sulphate MSO4, water insoluble hydroxide M(OH)2 and oxide MO which becomes inert on heating. The hydroxide is soluble in NaOH. Then M is?

Choices

Choice (4) Response

a.

Magnesium

b.

Strontium

c.

Beryllium

d.

Calcium

Question number: 5

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which one of the following alkali metal is strong reducing agent?

Choices

Choice (4) Response

a.

k

b.

Cs

c.

Mg

d.

Sr

Question number: 6

» S-Block Elements Group 1 and 2 » Trends in Physical and Chemical Properties

MCQ▾

Question

Which one of the following oxide of alkali metal is used as refractory material?

Choices

Choice (4) Response

a.

MgO

b.

BeO

c.

CaO

d.

BaO

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