Basic Concepts in Chemistry-Concept of Atom, Molecule, Element and Compound [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 7 - 14 of 20

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Question 7

Question MCQ▾

A symbol not only represents the name of the element but also its?

Choices

Choice (4)Response

a.

Atomicity

b.

Atomic mass

c.

Atomic volume

d.

Atomic number

Edit

Question 8

Question MCQ▾

The equivalent mass of an element is 4. it՚s chloride has valency of element is?

Choices

Choice (4)Response

a.

2

b.

4

c.

1

d.

3

Edit

Question 9

Question MCQ▾

Common salt obtained from sea – water contains 95% mass. The approximate number of molecular present in salt is?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 10

Question MCQ▾

Number of atoms in is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 11

Question MCQ▾

The credit for the discovery of transuranic element goes to?

Choices

Choice (4)Response

a.

Hahn

b.

Seaborg

c.

Rutherford

d.

Curie

Edit

Question 12

Question MCQ▾

Caffeine has a molecular weight of If it contains by mass of nitrogen, number of atoms of nitrogen in one molecule of caffeine is?

Choices

Choice (4)Response

a.

6

b.

4

c.

3

d.

2

Edit

Question 13

Question MCQ▾

Which one of the following phrases would be incorrect to use?

Choices

Choice (4)Response

a.

A mole of a compound

b.

An atom of an element

c.

An atom of a compound

d.

A mole of an element

Edit

Question 14

Question MCQ▾

Which one of the following is not a compound?

Choices

Choice (4)Response

a.

Marble

b.

Carborundum

c.

Quicklime

d.

Ozone

Edit