${\mathrm{AlCl}}_3$ is a Lewis acid. Explain.

Important Questions on Group-13 Elements

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 1

Which of the following is a $\mathrm{p}$-block element?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 2

Borax on heating with cobalt oxide forms a bead of 

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 3

The product formed in the reaction, ${\mathrm{BCl}}_3+{\mathrm{H}}_2\mathrm{O}\to$ is

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 4

Which of the following is an ionic trihalide?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 5

In which of the following, $+1$ oxidation state is stabler than $+3$?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 6

Boron carbide, ${\mathrm{BCl}}_4$ is widely used in

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 7

One that marks the paper like lead is _____

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>MULTIPLE CHOICE TYPE>Q 8

Which is used in high temperature thermometry?