CBSE chemistry

Sponsor Area

Question
CBSEENCH12010472

Write the formula of an oxo-anion of Manganese (Mn) in which it shows the oxidation state equal to its group number.

Solution

The formula of an oxo anion of Manganese in which it shows the oxidation state equal to its group member is Permanganate MnO/KMnO4

The oxidation state of Mn is + 7.

Sponsor Area

Question
CBSEENCH12010474

For a reaction R → P, half-life (t1/2) is observed to be independent of the initial concentration of reactants. What is the order of reaction?

Solution

First order reaction.

Question
CBSEENCH12010476

Write one similarity between Physisorption and Chemisorption?

Solution

(i) Physisorption and Chemisorption both are a surface phenomenon.
(ii) Physisorption and Chemisorption both increase with increase in surface area

Question
CBSEENCH12010477

Complete the following reactions :
NH3 + 3Cl2(excess) →

Solution

NH3 + 3Cl2(excess) → NCl3 + 3HCl

Question
CBSEENCH12010478

Complete the following reactions :
XeF6 + 2H2O → 

Solution

XeF6 + 2H2O → XeO2F2 + 4HF