Chemistry-Structure of Atom (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 6 of 34

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Question number: 1

» Chemistry » Structure of Atom

MCQ▾

Question

35/17 Cl and 37/17 Cl differ from each other in respect of number of

Choices

Choice (4) Response

a.

protons

b.

electrons

c.

neutrons

d.

None of the above

Question number: 2

» Chemistry » Structure of Atom

MCQ▾

Question

Which of the following is the correct electronic configuration of Neon?

Choices

Choice (4) Response

a.

2, 8, 2

b.

2, 8

c.

2, 8, 1

d.

Question does not provide sufficient data or is vague

Question number: 3

» Chemistry » Structure of Atom

MCQ▾

Question

What are isotopes?

Choices

Choice (4) Response

a.

Elements having same atomic masses but different atomic numbers

b.

Elements having same atomic numbers but number of protons is different

c.

Elements having different atomic masses but same atomic numbers

d.

Elements having same atomic numbers as well as atomic masses

Question number: 4

» Chemistry » Structure of Atom

MCQ▾

Question

Calculate the mass of 1 mole of NaCl. (Given atomic mass of Na-23, Cl- 35.5)

Choices

Choice (4) Response

a.

11.2 gms

b.

11.8 gms

c.

58.5 gms

d.

56 gms

Question number: 5

» Chemistry » Structure of Atom

MCQ▾

Question

Consider the following facts regarding plaster of Paris

Choices

Choice (4) Response

a.

It is a white powder.

b.

It is prepared from calcium sulphate dehydrate.

c.

Its general formula is CaS0 4 and 2H2O.

d.

Both a. and b. are correct

Question number: 6

» Chemistry » Structure of Atom

MCQ▾

Question

The chemical name of

Mg3(PO4)2

and oxidation number of Mg is.

Choices

Choice (4) Response

a.

magnesium phosphite and three

b.

magnesium phosphide and two

c.

magnesium phosphate and two

d.

magnesium phosphotite and three

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