Define the terms ‘mineral’ and ‘ore’.

Important Questions on Metals and Nonmetals

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 3

Why are non-metals electronegative in nature?

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 4

Why are metals called electropositive elements?

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 5

Which of the following elements is a metal?
_{${}^{23}\mathrm{X}_{11} {}^{19}\mathrm{Y}_9$}

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 6

What is meant by activity series of metals?

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 7

Arrange Ca, Zn, Ba, Fe, Au, Ag and Cu in order of decreasing reactivity.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 8

Explain why silver does not displace hydrogen from a dilute acid solution.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 9

What is the most common property of the metals lying at the bottom of the reactivity series?

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 10

An element $\mathrm{X}$ on reacting with oxygen forms an oxide ${\mathrm{X}}_2\mathrm{O}$. This oxide dissolves in water and turns blue litmus red. State whether the element $\mathrm{X}$ is a metal or non-metal.