Ionic Equilibria

Question 1

Classification of electrolytes into strong and weak electrolytes is based on ____

Answer 1

their extent of ionisation in dilute aqueous solution

Question 2

____ is found in household cleaning products

Answer 2

Ammonia

Question 3

Which of the following Fluoro compounds is most likely to behave as as a Lewis base?
1.SiF4 2. BF3 3. PF3 4. CF4

Answer 3

PF3

Question 4

Acidity of BF3 can be explained on the basis of which concepts?

Answer 4

Lewis concept

Question 5

For pH => 7 the hydromium ion concentration will be ?

Answer 5

<10^-7 Molar (M)

Question 6

Identify the strong acid from the following
1. H2S 2. HI 3. HF 4. HCOOH

Answer 6

HI

Question 7

The pH of 10^-4M KOH solution will be ____

Answer 7

10

Question 8

The pH of 10^-8 M HCl is____

Answer 8

less than 7

Question 9

Aqueous solution of which of the following will be basic?
1. NH4Cl 2.FeCl3 3. CuSO4 4. CH3COONa

Answer 9

CH3COONa

Question 10

Which of the following salts will give highest pH in water?
1. KCl 2. NaCl 3. Na2CO3 4. CuSO4

Answer 10

Na2CO3