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Chemical Formulae and Chemical Equations Online Exam Quiz

Important questions about Chemical Formulae and Chemical Equations. Chemical Formulae and Chemical Equations MCQ questions with answers. Chemical Formulae and Chemical Equations exam questions and answers for students and interviews.

Chemical formula of Zinc Hydroxide is

Options

A : a. Zn(OH)?

B : b. ZNO?

C : c. Zn?(OH)?

D : d. ZnOH

Valency of Carbon (C) is

Options

A : a. 1

B : b. 2

C : c. 3

D : d. 4

All are ionic compounds except

Options

A : a. AgCl

B : b. HNO?

C : c. NO?

D : d. (NH?)?CO?

Molecular weight of propane (C?H?) is

Options

A : a. 44.095g/mol

B : b. 40.01g/mol

C : c. 41.01g/mol

D : d. 46.02g/mol

Chemical formula of silver bromide is

Options

A : a. Ag?Br?

B : b. AgBr

C : c. AgBrO

D : d. AgBr?.H?O

Valency of carbonate ion CO?? is

Options

A : a. -1

B : b. -2

C : c. -3

D : d. -4

All are covalent compounds except

Options

A : a. NO?

B : b. SO?

C : c. SO?

D : d. HNO?

Empirical formula is the

Options

A : a. simplest formula

B : b. molecular formula

C : c. chemical formula

D : d. ionic exponential formula

All of these radicals have a valency of 2, except

Options

A : a. SO?

B : b. CO?

C : c. NH?

D : d. MgCO?

Formula of hydrated Sodium Carbonate is

Options

A : a. Na(HCO?)?

B : b. Na?CO?.(H?O)?

C : c. Na?CO?.10H?O

D : d. Na3CO?.10H?O

Variable valencies are used to indicate ions

Options

A : a. greater than +1

B : b. greater than ?1

C : c. with more than one valency

D : d. all of these

In CuO (Copper Oxide), valency of Copper is

Options

A : a. +1

B : b. +2

C : c. ?1

D : d. ?2

In order to get Sodium Sulfite (Na?SO?) as product, reactants shall be Sulfur Dioxide (SO?) and

Options

A : a. Na?CO?

B : b. NaOH

C : c. NaCl

D : d. both a and b

Relative molecular mass of Na?CO? is

Options

A : a. 98

B : b. 128

C : c. 286

D : d. 198

Formula of Ammonium Sulfate ((NH?)?SO?) is

Options

A : a. NH?(SO?)?

B : b. NH?(HSO?)?

C : c. (NH?)?SO?

D : d. (NH?)2SO?

Natrium is Latin name for

Options

A : a. Nickel

B : b. Nitrogen

C : c. sodium

D : d. Stannum

Formula of copper carbonate is

Options

A : a. CuCO?

B : b. CuCO?

C : c. CuCHO?

D : d. CuCOH

Substance is treated both as a radical and an element. It is

Options

A : a. sulphate

B : b. hydrogen

C : c. carbonate

D : d. Phosphorus

All are examples of radicals except

Options

A : a. hydroxide

B : b. Sulphate

C : c. ammonium

D : d. aluminum

Valency of hydroxide ion (OH) is

Options

A : a. -1

B : b. -2

C : c. -3

D : d. -4

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