# Class 10 Science Metals and Non Metals very Short Questions

In this page we have Class 10 Science Metals and Non Metals very Short Questions/em> . Hope you like them and do not forget to like , social shar and comment at the end of the page.

## True and false

1. The composition of aqua-regia is Conc. HCl: Conc. HNO3 is 3: 1
2. Metals are electronegative?
3. Sodium chloride conducts electricity in solid state
4. Chlorine is a half metal
5. Cassiterite is not an ore of iron
6. Electrical wires have a coating of an PVC insulting material
7. Duralumin is a mixture of Copper and tin?
8. Sodium Metal that can be easily cut with a knife
9. The impurities (sand, silt, soil, gravel, etc.) present in the ore are called gangue

## Match the column

 Column A Column B Brass An alloy of Copper and tin Bronze An alloy of copper and zinc Solder An alloy of iron and carbon Steel An alloy of lead and tin

 Column A Column B (electron dot structure) Magnesium 2,8,7 Chlorine 2,8,2 Sodium 2,6 Oxygen 2,8,1

## Fill in the blanks

1. The minerals from which metals can be conveniently and profitably extracted are called ______
2. _______ is the process in which a carbonate ore is heated below melting point in absence of air
3. ______ is the process in which metal oxides are reduced to molten metal by using carbon
4. The process of purifying impure metal to obtain pure metal is called ________
5. _____________ is the eating up of metal by action of air, moisture on their surface
6. ________ is the homogenous mixture of two or more metals
7. The elements that exhibit properties of both metals and non – metals are called ____________

## Multiple Choice Questions

1) Which of the following non-metals is a liquid?
a) Carbon
b) Sulphur
c) Phosphorus
d) Bromine

2) Which of the following methods is suitable for preventing an iron frying pan from rusting?
(a) Applying grease
(b) Applying paint
(c) Applying a coating of zinc
(d) All of the above.

Given below are the links of some of the reference books for class 10 Science.

You can use above books for extra knowledge and practicing different questions.

### Practice Question

Question 1 Which among the following is not a base?
A) NaOH
B) $NH_4OH$
C) $C_2H_5OH$
D) KOH
Question 2 What is the minimum resistance which can be made using five resistors each of 1/2 Ohm?
A) 1/10 Ohm
B) 1/25 ohm
C) 10 ohm
D) 2 ohm
Question 3 Which of the following statement is incorrect? ?
A) For every hormone there is a gene
B) For production of every enzyme there is a gene
C) For every molecule of fat there is a gene
D) For every protein there is a gene