Molecules and Atomicity

Q.

Which of the following options is correct with respect to atomicity?

1. Oxygen, Ammonium Chloride, Sulphuric acid.

2. Sulphuric acid, Ammonium Chloride, Oxygen.

3. Oxygen, Sulphuric acid, Ammonium Chloride.

4. None of these

Q.

The atomicity of FeCO₃ is ______.

1. three
2. five
3. six
4. four

Q.

Statement I - Atomicity of the oxygen molecule is 1.

Statement II - Atomicity is the total number of atoms present in a molecule.

1. Statement I is correct but statement II is incorrect
2. Statement II is correct but statement I is incorrect
3. Both the statements are correct
4. Both the statements are incorrect

Q.

A molecule should:

1. electrically neutral.

2. should contain two or more atoms.

3. The atoms must be combined with chemical bonds.

4. All the given options are correct.

Q.

A scientist found a new compound Y while working on a new experiment.

He represented the compound Y as $Fe(HC{O}_3{)}_3$. What is its atomicity?

1. 6
2. 8
3. 15
4. 16

Q.

Statement 1: $N_2$ and $H_{2}O$ are both molecules.
Statement 2: A molecule can have only similar kind of atoms.

1. Both the statements are true, and 2 explains 1

2. Both the statements are true, and 2 doesn't explain 1

3. Only Statement-1 is true
4. Only Statement-2 is true

Q.

Which of the following exists as molecules?

(i) Oxygen gas

(ii) Argon

(iii) Ammonia

(iv) Helium

(v) Water

(vi) Sugar

1. i, iii, v, vi
2. ii, iv, v
3. i, iv, ii
4. iii, v, vi

Q.

Which of the following is/are true in case of molecules?

1. They are capable of independent existence .

2. They have same properties as that of the substance.

3. The molecules of a compound have definite proportions of atoms.

4. All the given options are correct.

Q. Water is a _______ molecule.

1. Tetraatomic

2. Monoatomic

3. Polyatomic

4. Triatomic

Q.

Atomicity of oxygen molecule is 1.

1. Diatomic

2. Monoatomic