Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 14

EASY

JEE Main/Advance

IMPORTANT

Earn 100

Which of the following is a tetrabasic acid?

100% studentsanswered this correctly

Important Questions on The p-Block Elements

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 15

There is no

S - S

bond in

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 16

Which of the following have a three dimensional network structure?

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 17

The silicate anion in the mineral kinoite is a chain of three

{SiO}_{4}^{4 -}

tetrahedras that share corners with adjacent tetrahedras. The mineral also contains

{Ca}^{2 +}, {Cu}^{2 +}

ions and

H_{2} O

molecules in a

1 : 1 : 1

ratio, mineral is represented by:

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 18

A mixture of boric acid with ethyl alcohol burns with green edged flame due to formation of -

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 19

Which of the following statements is correct?

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 20

Which one of the following does not exist in the free form?

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 21

Thermite is a mixture of -

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>EXERCISE-2>Q 23

Borax is actually made of two tetrahedral and two triangular units joined together and should be written as :

Na [B_{4} O_{5} {(OH)}_{4}] \cdot 8 H_{2} O

.

Consider the following statements about borax:

1. Each boron atom has four $B - O$ bonds

2. Each boron atom has three $B - O$ bonds

3. Two boron atoms have four $B - O$ bonds while other two have three $B - O$ bonds

4. Each boron atom has one- $OH$ groups

Select correct statement(s) -