PRACTICE TEST 2-Class 10 – Science -Chemistry -Chapter 3

Welcome to your Ncert - class 10- science - Chapter 3 – Metals and Non-metals 2

1.

Which statement is false?

Non metals are Occur as solid or gas

Metals are Solid at room temperature except mercury

Non metals have low melting point

Non metals are good conductors of heat and electricity

2.

Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

HCl

HNO3

H2SO4

All of these

3.

Which of the following is true?

Malachite is an ore of Copper

Color of basic copper carbonate is green

Aluminum is more reactive than Copper

All the above

4.

Which one of the following metals do not react with cold as well as hot water?

Sodium (Na)

Calcium (Ca)

Magnesium (Mg)

Iron (Fe)

5.

Which one of the following properties is not generally exhibited by ionic compounds?

Electrical conductivity in molten state

Solubility in water

High melting and boiling points

Electrical conductivity in solid state

6.

Which of the following property is generally not shown by metals (except some metals)?

Ductility

Dullness

Electrical conduction

Sonorous in nature

7.

The ability of metals to be drawn into thin wire is known as

Ductility

Sonorousity

Conductivity

Malleability

8.

Which one of the following properties is not generally exhibited by ionic compounds?

Solubility in water

Electrical conductivity in molten state

Electrical conductivity in solid state

High melting and boiling points

9.

Match the substances given in Column A with their uses given in Column B.

Column A	Column B
(i) Gold	(a) Thermometers
(ii) Iron	(b) Electric wire
(iii) Aluminium	(c) Wrapping food
(iv) Carbon	(d) Jewellery
(v) Copper	(e) Machinery
(vi) Mercury	(f) Fuel

(i) - b, (ii) - d, (iii) - c, (iv) - e, (v) - a, (vi) - f

(i) - c, (ii) - e, (iii) - a, (iv) - f, (v) - d, (vi) - b

(i) - d, (ii) - e, (iii) - c, (iv) - f, (v) - b, (vi) - a

(i) - d, (ii) - f, (iii) - c, (iv) - a, (v) - b, (vi) - e

10.

An electrolytic cell consists of

(i) Positively charged cathode

(ii) Negatively charged anode

(iii) Positively charged anode

(iv) Negatively charged cathode

(iii) and (iv)

(i) and (ii)

(i) and (iii)

(ii) ad (iv)

11.

What happens when silicon reacts with oxygen?

None of these

Silicon phosphate

Silicon nitrate

Silicon dioxide

12.

What are the main impurities present with bauxite ore?

Sulphur, Iron oxide

Silica, Iron oxide

Silica, Calcium carbonate

All of the above

13.

What happens when dilute sulphuric acid is poured on a copper plate?

Zinc sulphate formed

Copper chloride formed

Copper does not react sulphuric acid

14.

What happens when calcium is treated with water?

(i) It does not react with water

(ii) It reacts violently with water

(iii) It reacts less violently with water

(iv) Bubbles of hydrogen gas formed stick to the surface of calcium

(iii) and (iv)

(ii) and (iii)

(i) and (iv)

(i) and (ii)

15.

Which of the following metals cannot be extracted using smelting

Pb

Zn

Fe

Al

16.

The property of metals by which they can be beaten in to thin sheets is called-

Ductility

Expansion

Malleability

Conduction

17.

The following metals exist in their native state:

Pt, Au, Ag

Ne, He, Ar

All of these

Fe, Ag, Au

18.

Which element is stored in water and which element is stored in kerosene?

Magnesium and sodium respectively

Sodium and phosphorus respectively

Calcium and phosphorus respectively

Phosphorus and sodium respectively

19.

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

(i) Good thermal conductivity or good heat conduction

(ii) Good conduction of electricity

(iii) Ductility

(iv) High melting point

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(i) and (iii)

20.

Which of the following property is generally not shown by metals?

Electrical conduction

Ductility

Dullness

Sonorous in nature

Chapter 1 - Chemical Reaction and Equation

chapter 2- Acids, Bases and Salt

Chapter 3 – Metals and Non-metals

Chapter 4 – Carbon and its Compounds

Assertion and Reason chemistry

CASE BASED QUESTIONS

Curriculum

Ncert-Class 10 Science - Chemistry

Chapter 1 - Chemical Reaction and Equation

chapter 2- Acids, Bases and Salt

Chapter 3 – Metals and Non-metals

Chapter 4 – Carbon and its Compounds

Assertion and Reason chemistry

CASE BASED QUESTIONS

PRACTICE TEST 2-Class 10 – Science -Chemistry -Chapter 3 – Metals and Non-metals 2