Acid, Bases

Acid, Bases

7th Grade

12 Qs

quiz-placeholder

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Acid, Bases

Acid, Bases

Assessment

Quiz

Science

7th Grade

Hard

Created by

HL Chan

Used 22+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When vinegar is added to eggshell, the shell dissolves and produces a gas. Which of the following explains the reaction?

Eggshell is neutralized by acids.

Eggshell dissolves in vinegar, but not in water.

Vinegar contains an acid and eggshell contains a carbonate.

Vinegar is very corrosive

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

The table shows the pH value of 4 soil samples.

Cabbages grow best in alkaline soil.

Which soil sample/s should a farmer use for growing cabbages?

W, X and Y only

W and X only

Y and Z only

Y only

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Which of the following indicator could be used to distinguish between two samples of aqueous ammonia of pH 9 and sodium hydroxide solution of pH 12?

A

B

C

D

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

An excess of calcium hydroxide solution (alkali) is added to each of the test tubes as shown in the figure below. In which test tube will there be no change in colour?

A

B

C

D

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When a drop of Universal Indicator is added to some dilute sulfuric acid, it turns red. When a solution X is added to the dilute sulfuric acid, the universal indicator turns blue. What could solution X be?

distilled water

dilute hydrochloric acid

sodium chloride solution

sodium hydroxide solution

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Carbon dioxide was given off when vinegar was added to some eggshells. What does this tell you about the eggshells?

They are acidic

They are alkaline

They are carbonates

They are metallic

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Solutions P and Q

Solutions R and S

Solutions Q and T

Solutions Q and R

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