The Language of Chemistry Test

Result

The Language of Chemistry Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

1 a.m.u. is equivalent to

A
th of mass of carbon atom

B
of mass of carbon atom

C
of mass of carbon atom

D
of mass of carbon atom
Question 2
1 / -0

Which of the following is a basic radical?

A
Hydroxide

B
Peroxide

C
Argentic

D
Arsenate
Question 3
1 / -0

Which of the following is not a correct formula of the given compound?

A
Acetic acid - CH₃ COOH

B
Slaked lime - Ca (OH)₂

C
Aluminium oxide - AlO₃

D
Potassium carbonate - K₂CO₃
Question 4
1 / -0

What does the chemical symbol `Cl₂` represent?

A
An atom of chlorine

B
An isotope of chlorine

C
A molecule of chlorine

D
An isobar of chlorine
Question 5
1 / -0

The valency of phosphorous is 3, but that of oxygen is 2. What will be the molecular formula of phosphorous oxide?

A
P₃O₂

B
2PO₃

C
P₂O₃

D
3PO₂

E
P₄O₁₀
Question 6
1 / -0

Which of the following is a simple bivalent electronegative ion?

A
SO

B
N^-3

C
S^-2

D
CN^-1
Question 7
1 / -0

Which of the following is true regarding sodium carbonate compound?

A
Compound consists of two atoms, i.e. sodium and carbonate.

B
Valency of carbonate in the compound is - 2.

C
Two different elements form this compound.

D
Valency of sodium in sodium carbonate is + 2.
Question 8
1 / -0

What is the valency of iron in ferrous oxide?

A
- 2

B
- 3

C
+ 3

D
+ 2
Question 9
1 / -0

Which of the following is atomic mass of an atom with 12 neutrons, 10 electrons and 10 protons?

A
12 U

B
22 U

C
20 U

D
32 U
Question 10
1 / -0

Which of the following is a simple radical?

A
PO

B

C

D
Pt⁺⁴
Question 11
1 / -0

What is the name of the compound HgO?

A
Hydragyrium oxide

B
Mercurous oxide

C
Mercuric oxide

D
Hydragyric oxide
Question 12
1 / -0

Which of the following statements is true regarding HCO?

A
It is simple, electronegative and basic radical.

B
It is simple, electronegative and acidic radical.

C
It is compound, electronegative and basic radical.

D
It is compound, electronegative and acidic radical.
Question 13
1 / -0

Which of the following elements will form acidic radical?

A
Tin

B
Platinum

C
Arsenic

D
Gold
Question 14
1 / -0

Which of the following cannot be depicted from the chemical formula of a compound?

A
Molecular weight of a compound

B
Number of atoms in a compound

C
Ratio of weights of elements in a compound

D
Nature of bonds between elements in a compound
Question 15
1 / -0

Which of the following shows variable valencies?

A
Copper

B
Sodium

C
Chlorine

D
Calcium
Question 16
1 / -0

Which of the following statements is true for NaCl?

A
Sodium forms acidic and positive radical.

B
Chlorine forms basic and positive radical.

C
Sodium forms positive and basic radical.

D
Chlorine forms negative and basic radical.
Question 17
1 / -0

Which of the following is not indicated by the formula `CO₂`?

A
Molecular weight of carbon dioxide is 44.

B
Carbon dioxide contains 32 parts by weight of carbon.

C
Carbon atom is joined with the oxygen atoms by chemical bonds.

D
There are three atoms in the molecule.