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Acids and Bases Online Exam Quiz

Important questions about Acids and Bases. Acids and Bases MCQ questions with answers. Acids and Bases exam questions and answers for students and interviews.

When an acid (H+) is added to alkali (OH-), product is

Options

A : a. hydroxides

B : b. water

C : c. salts

D : d. hydrogen gas

K?O + H?O ?

Options

A : a. K(OH)?

B : b. KOH

C : c. KOH.H?O

D : d. KO + H? + O?

Mineral acids are

Options

A : a. naturally occurring

B : b. man made

C : c. include malic acid

D : d. include formic acid

Excess acidity caused by acid rain can be neutralized by adding

Options

A : a. more fertilizers

B : b. by removing the acidified soil

C : c. by adding P?O?

D : d. by adding lime

More corrosive acid is

Options

A : a. H?CO?

B : b. H?SO?

C : c. HNO?

D : d. C?H?O?

NaOH + HCl ?

Options

A : a. Na(OH)? + H?

B : b. NaCl + H?

C : c. NaCl + H?O

D : d. NaCl + H? + O?

Phosphoric acid has formula

Options

A : a. H?PO?

B : b. H?PO?

C : c. H?PO?

D : d. H?PO?

In Universal indicators, red color shows

Options

A : a. strong acids

B : b. strong alkalis

C : c. weak acids

D : d. weak bases

Bases (OH-) are

Options

A : a. corrosive

B : b. turn litmus from blue to red

C : c. turn litmus from red to blue

D : d. non-metal oxides

Acids (H+) reacts with metal hydroxides (-OH-) to from

Options

A : a. salt and water

B : b. salt and hydrogen gas

C : c. salt and hydrogen oxides

D : d. salt and alkali

Apples contain

Options

A : a. citric acid

B : b. malic acid

C : c. tartaric acid

D : d. acetic acid

Consider equation P?O?? + H?O ? H?PO?. number of moles of H?PO? produced by reaction are

Options

A : a. 2

B : b. 4

C : c. 6

D : d. 8

An alkali (OH-) is a

Options

A : a. water soluble base

B : b. water insoluble base

C : c. oil soluble base

D : d. oil insoluble base

In Universal indicators, a pH of 7 is shown with

Options

A : a. yellow color

B : b. green color

C : c. blue color

D : d. pink color

Chemical formula of Caustic soda is

Options

A : a. NaOH

B : b. KOH

C : c. MgO

D : d. Ca(OH)?

Bleach has an approximate of

Options

A : a. 5

B : b. 8

C : c. 11

D : d. 14

In Universal indicators, weak alkalis are indicated through

Options

A : a. turquoise color

B : b. blue color

C : c. light violet color

D : d. all of these

Orange juice is

Options

A : a. acidic

B : b. alkaline

C : c. neutral

D : d. basic

Best indicator of all is

Options

A : a. litmus indicator

B : b. universal indicator

C : c. methyl orange indicator

D : d. Phenolphthalein indicators

Consider equation PbO + HCl ? PbCl? + H?O. Moles of HCl required to balance equation are

Options

A : a. 1

B : b. 2

C : c. 3

D : d. 4

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