Chemical Formulae and Chemical Equations MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Formulae and Chemical Equations, a fundamental topic in the field of Chemistry. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Chemical Formulae and Chemical Equations MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Chemical Formulae and Chemical Equations mcq questions that explore various aspects of Chemical Formulae and Chemical Equations problems. Each MCQ is crafted to challenge your understanding of Chemical Formulae and Chemical Equations principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Chemistry tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Chemical Formulae and Chemical Equations MCQs are your pathway to success in mastering this essential Chemistry topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Chemical Formulae and Chemical Equations. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Chemical Formulae and Chemical Equations MCQs | Page 11 of 28

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Q101.
Molar mass of Copper Oxide (Cu₂O) is

a.

113.14g/mol

b.

139.33g/mol

c.

173.298g/mol

d.

143.09g/mol

Discuss
Answer: (d).143.09g/mol
Q102.
Consider reactants: HNO₃ and BaSO₃

a.

reaction takes place in aquatic state

b.

the reaction results in Barium nitrate

c.

reaction results in barium nitrite

d.

the reaction may not occur at all

Discuss
Answer: (d).the reaction may not occur at all
Q103.
In Na₂CO₃.10H₂O, after water, highest percentage composition is of

a.

sodium

b.

oxygen

c.

carbon

d.

hydrogen

Discuss
Answer: (b).oxygen
Q104.
Copper can have a charge of

a.

2 or 4

b.

4 or 6

c.

3 or 5

d.

2 or 1

Discuss
Answer: (d).2 or 1
Q105.
Formula of Calcium Hydrogen Carbonate indicates

a.

that the charge on Ca is +2

b.

the charge on HCO₃ is −1

c.

that for each molecule of calcium hydrogen carbonate, one ion of Ca and two ions of hydrogen carbona

d.

all of these

Discuss
Answer: (d).all of these
Q106.
Metal that burns even more brightly than Magnesium (Mg) is

a.

zinc

b.

mercury

c.

zirconium

d.

diamond

Discuss
Answer: (c).zirconium
Q107.
Sulfite ion can be written symbolically as

a.

SO₄−2

b.

SO₃−2

c.

SO₄−3

d.

S−2

Discuss
Answer: (b).SO₃−2
Q108.
Formula K₂SO₄ indicates that

a.

2 ions of Kalium are combined with 4 molecules of oxygen

b.

2 ions of Kalium are combined with 1 sulfate ion

c.

2 ions of potassium are combined with one sulfur and 4 oxygen molecules

d.

1 ion of potassium is combined with 1 sulfate ion

Discuss
Answer: (b).2 ions of Kalium are combined with 1 sulfate ion
Q109.
Formula of carbonic acid indicates that

a.

for each ion of Carbon, two ions of hydrogen are required

b.

for each ion of H, two carbonate ions are required

c.

for each carbonate ion, two ions of hydrogen are required

d.

for two carbonate ions, three ions of Hydrogen are required

Discuss
Answer: (c).for each carbonate ion, two ions of hydrogen are required
Q110.
Valency of Ferrum can be

a.

2 or 4

b.

4 or 6

c.

3 or 5

d.

2 or 3

Discuss
Answer: (d).2 or 3
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