Atoms and Molecules Test

Result

Atoms and Molecules Test - 12

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1

1 / -0

Match the following with the correct response:

(1) PCl₅	(A) Dinitrogen tetraoxide
(2) N₂O₅	(B) Phosphorous pentachloride
(3) N₂O₄	(C) Carbon tetrachloride
(4) CCl₄	(D) Dinitrogen pentaoxide

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

1-B, 2-D, 3-A, 4-C

1-C, 2-B, 3-D, 4-A

Solution

(1) PCl₅	(B) Phosphorous pentachloride
(2) N₂O₅	(D) Dinitrogen pentaoxide
(3) N₂O₄	(A) Dinitrogen tetraoxide
(4) CCl₄	(C) Carbon tetrachloride

Question 2
1 / -0

Match the following with the correct response:

(1) 1 mole of O₂ (A) 6.022 × 10²³ molecules

(2) 1 mole of N (B) 12 g

(3) 1 mole of C (C) 6.022 × 10²³atoms

(4) 1 mole of H₂O (D) 18 g

A
1-B, 2-D, 3-A, 4-C

B
1-A, 2-C, 3-B, 4-D

C
1-D, 2-A, 3-C, 4-B

D
1-C, 2-B, 3-D, 4-A

Solution

(1) 1 mole of O₂ (A) 6.022×10²³ molecules

(2) 1 mole of N (C) 6.022×10²³ atoms

(3) 1 mole of C (B) 12 g

(4) 1 mole of H₂O (D) 18 g
Question 3
1 / -0

Which is not true about H₂SO₄?

(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.
(b) It relative molecular mass is 98.
(c) It is composed of one molecule of H₂, one atom of S and two molecules of O₂
(d) Its relative molecular mass is 108.

A
All of these

B
(a), (b) and (c) are correct

C
(c) and (d) are correct.

D
(b) and (c) are correct

Solution

H₂SO₄is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms. It relative molecular mass is 98.
Question 4
1 / -0

Which of the following is the correct definition of a mole?

(a) It is equal to the gram atomic mass of the substance.
(b) It contains 6.022×10²⁰ atoms of a given substance.
(c) It is equal to gram molecular mass of the substance.
(d) It contains 6.022×10²³molecules of a given substance.

A
All of these

B
(b) and (c) are correct

C
(a), (c) and (d) are correct

D
(a) and (b) are correct

Solution

A mole is defined as the amount of a substance which contains the same number of elementary entities (e.g. atoms, molecules, ions, electrons, photons) as atoms in 0.012 kilograms of carbon-12. Gram atomic mass is the mass (in grams) of one mole of atoms in a monatomic element. It is numerically equal to the relative atomic mass (or atomic weight) in grams. Gram molecular mass is the mass (in grams) numerically equal to the molecular weight of a substance or the sum of all the atomic masses in its molecular formula.
Question 5
1 / -0

Which of the following is/are incorrect chemical formula of the given compound?

(a) Zinc Phosphate - Zn₃(PO₄)₂
(b) Ferric carbonate - Fe₃(CO₃)₂
(c) Calcium Phosphate - Ca₃PO₄
(d) Sodium Sulphide-Na₂S

A
All of these

B
(a), (b) and (c) are incorrect

C
(a) and (b) are incorrect

D
(b) and (c) are incorrect

Solution

(a) Zinc Phosphate - Zn₃(PO₄)₂ and (d) Sodium Sulphide -Na2SNa2Sare correct chemical formulae.

Fe₃(CO₃)₂ is an incorrect formula for Ferric Carbonate. The correct chemical formula would be Fe₂(CO₃)₃
Ca₃PO₄ is an incorrect formula for Calcium Phosphate. The correct chemical formula would be Ca₃(PO₄)₂
Question 6
1 / -0

Identify the correct statement:

A
Dalton was the first to state that the smallest indivisible portion of matter is an atom.

B
The molecules of noble gas elements are diatomic in nature.

C
The law of constant proportions was stated by A Lavoisier.

D
The law of conservation of mass was given by Louis Proust.

Solution

Dalton was the first to state that the smallest indivisible portion of matter is an atom.

The law of conservation of mass was given by A.Lavoisier. The law of constant proportions was stated by Louis Proust. The molecules of noble gas elements are monoatomic in nature.
Question 7
1 / -0

Which of the two statements is/are true?

Statement A : Positive ion migrates towards the cathode on passing electric current.
Statement B : Some of the atoms of the elements have fractional mass.

A
Statement B

B
Statement A

C
Neither statement A nor statement B

D
Both the statements - A and B

Solution

Positive (+ve) ions migrate towards (negatively charged) cathode on passing electric current.
Question 8
1 / -0

Match the following with the correct response:

(1) Ions (A) Negatively charged

(2) Anions (B) Polyatomic ion

(3) Cations (C) Positively charged

(4) Radical (D) Charged particles

A
1-B, 2-D, 3-A, 4-C

B
1-D, 2-A, 3-C, 4-B

C
1-C, 2-B, 3-D, 4-A

D
1-A, 2-C, 3-B, 4-D

Solution

(1) Ions (D) Charged particles

(2) Anions (A) Negatively charged

(3) Cations (C) Positively charged

(4) Radical (B) Polyatomic ion

Question 9

1 / -0

Match the following with correct response:

(1) A dozen of pencil	(A) Mole
(2) Avogadro constant	(B) 12
(3) Unit used for calculation of amount of chemical substances	(C) Carbon-12
(4) Reference atom	(D) 6.022×10²³

1-C, 2-B, 3-D, 4-A

1-B, 2-D, 3-A, 4-C

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

Solution

(1) A dozen of pencil	(B) 12
(2) Avogadro constant	(D) 6.022×10²³
(3) Unit used for calculation of amount of chemical substances	(A) Mole
(4) Reference atom	(C) Carbon-12

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

(1) 1 mole of O₂	(A) 6.022 × 10²³ molecules
(2) 1 mole of N	(B) 12 g
(3) 1 mole of C	(C) 6.022 × 10²³atoms
(4) 1 mole of H₂O	(D) 18 g

(1) 1 mole of O₂	(A) 6.022×10²³ molecules
(2) 1 mole of N	(C) 6.022×10²³ atoms
(3) 1 mole of C	(B) 12 g
(4) 1 mole of H₂O	(D) 18 g

(1) Ions	(A) Negatively charged
(2) Anions	(B) Polyatomic ion
(3) Cations	(C) Positively charged
(4) Radical	(D) Charged particles

Atoms and Molecules Test - 12

Result

Atoms and Molecules Test - 12

Score

-

Rank

-

SHARING IS CARING

Question 1

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

1-B, 2-D, 3-A, 4-C

1-C, 2-B, 3-D, 4-A

Solution

Question 2

1-B, 2-D, 3-A, 4-C

1-A, 2-C, 3-B, 4-D

1-D, 2-A, 3-C, 4-B

1-C, 2-B, 3-D, 4-A

Solution

Question 3

All of these

(a), (b) and (c) are correct

(c) and (d) are correct.

(b) and (c) are correct

Solution

Question 4

All of these

(b) and (c) are correct

(a), (c) and (d) are correct

(a) and (b) are correct

Solution

Question 5

All of these

(a), (b) and (c) are incorrect

(a) and (b) are incorrect

(b) and (c) are incorrect

Solution

Question 6

Dalton was the first to state that the smallest indivisible portion of matter is an atom.

The molecules of noble gas elements are diatomic in nature.

The law of constant proportions was stated by A Lavoisier.

The law of conservation of mass was given by Louis Proust.

Solution

Question 7

Statement B

Statement A

Neither statement A nor statement B

Both the statements - A and B

Solution

Question 8

1-B, 2-D, 3-A, 4-C

1-D, 2-A, 3-C, 4-B

1-C, 2-B, 3-D, 4-A

1-A, 2-C, 3-B, 4-D

Solution

Question 9

1-C, 2-B, 3-D, 4-A

1-B, 2-D, 3-A, 4-C

1-D, 2-A, 3-C, 4-B

1-A, 2-C, 3-B, 4-D

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.