S-Block Elements Group 1 and 2-Anomalous Properties of the First Element of Each Group (NEET Chemistry): Questions 1 - 5 of 5

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Question number: 1

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

Lithium shows anomalous property when compared to other alkali metals, why?

Choices

Choice (4) Response
a.

Greater hardness of Li +3

b.

Hydration of Li +3

c.

Small size of lithium atom and Li +

d. All of the above

Question number: 2

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

Beryllium show diagonal relationship with aluminium. Which one of the following properties

is not shown by both?

Choices

Choice (4) Response
a.

Beryllium and aluminium have same maximum covalency

b.

BeO and Al 2O 3 are amphoteric

c.

Be 2 C and Al 4C 3 are methanides

d.

Beryllium and aluminium occur together in nature in beryl

Question number: 3

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

Which of the following has the tendency to form covalent compounds?

Choices

Choice (4) Response
a.

Strontium

b.

Beryllium

c.

Magnesium

d.

Calcium

Question number: 4

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

Li has following abnormal behavior in its group?

Choices

Choice (4) Response
a.

LiCl is covalent in nature

b.

Li3N is stable compound

c.

LiCl is poor conductor of electricity in molten state

d.

Lithium carbonate decomposes into its oxide on heating unlike other metals

Question number: 5

» S-Block Elements Group 1 and 2 » Anomalous Properties of the First Element of Each Group

MCQ▾

Question

The second ionization enthalpies of alkali metals are higher than corresponding alkaline earth metals, why?

Choices

Choice (4) Response
a.

electrons are loosely held towards nucleus

b.

electrons are tightly held towards nucleus

c.

because of increase in atomic size

d.

one can’t predict the exact reason

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