${\mathrm{BF}}_3$ is hypovalent molecule.

Important Questions on Metals and Non-metals

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 15

${\mathrm{SF}}_6$ is hypervalent molecule.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 16

Rolled gold is an alloy of $\mathrm{Cu}$ and $\mathrm{Al}$

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 17

Galena is an important ore of lead.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 18

$\mathrm{CO}$ is better reducing agent than carbon below $710°\mathrm{C}$.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 19

${\mathrm{Na}}_3{\mathrm{BO}}_3$ exists but ${\mathrm{Na}}_3{\mathrm{PO}}_3$ not.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 20

Molecular formula of sodium chloride is $\mathrm{NaCl}$.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 21

Iodine phosphate is an ionic compound.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 3 - Metals and Non-metals>Exercise 7>Q 22

Ionic compounds are weak electrolytes.