acids, bases and salts - Gujarat Board (GSEB) STD 10 Science Questions - Vidyadip

Question types

acids, bases and salts question types

160 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

160

Questions

7

Question groups

5

Question types

M.C.Q

Fill in the blank

True-False

[1 Mark Questions]

[2 Mark Questions]

[3 Mark Questions]

[4 marks Questions]

Sample Questions

acids, bases and salts questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q1 Mark

Which one of the following can be used as an acid-base indicator by a a visually impared student?

A
Litmus
B
Turmeric
✓
Vanilla essence
D
Petunia leaves.

Answer: C.

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Q 2M.C.Q1 Mark

Which of the following substances will not give $CO _2$ on treatment with dilute acid ?

A
Marble
B
Limestone
C
Baking soda
✓
Lime

Answer: D.

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Q 3M.C.Q1 Mark

Sodium carbonate is a basic salt because it is a salt of

A
Strong acid and strong base
B
Weak acid and weak base
C
Strong acid and weak base
✓
weak acid and strong base

Answer: D.

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Q 4M.C.Q1 Mark

Sodium carbonate is a basic salt because it is a salt of

A
Strong acid and strong base
B
Weak acid and weak base
C
Strong acid and weak base
✓
weak acid and strong base

Answer: D.

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Q 5M.C.Q1 Mark

Calcium phosphate is present in tooth enamel. Its nature is

✓
basic
B
acidic
C
neutral
D
amphoteric

Answer: A.

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Q 6Fill in the blank1 Mark

The stinging hair of nettle leaves injects $.........$ into the skin causing burning pain. $($ethanoic acid, propanoic acid, methanoic acid$)$

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Q 7Fill in the blank1 Mark

The atmosphere of $.............$ planet is made$-$up of thick white and yellowish clouds of sulphuric acid. $($jupiter, venus, mercury$)$

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Q 8Fill in the blank1 Mark

Generally, $.............$ paper is used with universal indicator to measure the pH value of the solution.$($simple, coloured, impregnated$)$

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Q 9Fill in the blank1 Mark

$\ce{MgO}$ is a $.............$ oxide. $($basic,netural,acidic$)$

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Q 10Fill in the blank1 Mark

Litmus is a $.............$ indicator. $($basic,netural,acidic$)$

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Q 11True-False1 Mark

Stomach produces sulphuric acid.

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Q 12True-False1 Mark

$pH =\log \left[ H _3 O ^{+}\right]$

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Q 13True-False1 Mark

A stain of curry on a white cloth becomes reddish brown when soap is scrubbed on it.

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Q 14True-False1 Mark

Vanila is not an olfactory indicator.

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Q 15True-False1 Mark

$pH =4$ indicates basic nature.

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Q 16[1 Mark Questions]1 Mark

In which forms does calcium carbonate available in nature?

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Q 17[1 Mark Questions]1 Mark

How does calcium carbonate occur in nature?

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Q 18[1 Mark Questions]1 Mark

Write an equation to show the reaction between plaster of paris and water.

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Q 19[1 Mark Questions]1 Mark

Why does the crystals of copper sulphate turn colourless on heating in dry boiling tube?

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Q 20[1 Mark Questions]1 Mark

Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?

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Q 21[2 Mark Questions]2 Marks

Explain the preparation and uses of bleaching powder.

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Q 22[2 Mark Questions]2 Marks

Write a short note on bleaching powder.

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Q 23[2 Mark Questions]2 Marks

State the effect of an acid and a base on an olfactory indicator. Explain it.

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Q 24[2 Mark Questions]2 Marks

How will you test acid and base using olfactory indicator? Explain it with an example.

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Q 25[2 Mark Questions]2 Marks

State the common characteristics of acids and bases.

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Q 26[3 Mark Questions]3 Marks

How is the strength of acids and bases determined?

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Q 27[3 Mark Questions]3 Marks

When zinc metal is treated with dilute $\mathrm{HCl}$ or dilute $\mathrm{H}_{2} \mathrm{SO}_{4}$, hydrogen gas is evolved, but with dilute $\mathrm{HNO}_{3}$ hydrogen gas is not evolved. Explain.

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Q 28[3 Mark Questions]3 Marks

State the common characteristics of acids and bases.

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Q 29[3 Mark Questions]3 Marks

What is meant by strong and weak acids; and weak and strong bases?

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Q 30[3 Mark Questions]3 Marks

How is the strength of acids and bases determined?

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Q 31[4 marks Questions]4 Marks

From the name of salt, their chemical formulae, their acid and base, how are they identified? Explain with examples

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Q 32[4 marks Questions]4 Marks

(a) Give importance of $pH$ in daily life.
(b) $pH$ in our Digestive System.

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Q 33[4 marks Questions]4 Marks

How are the tests of acid-base done using olfactory indicators ?

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Q 34[4 marks Questions]4 Marks

Explain about $(1)$ Importance of $pH$ in the soil of garden. $(2) pH$ in our Digestive System $(3) pH$ Change as the cause of tooth decay.

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Q 35[4 marks Questions]4 Marks

What is universal indicator? Give its uses.

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