(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

Give electron dot diagram of the following:
nitrogen

Give electron dot diagram of the following:
methane

(i) How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
(ii) How many electrons are required for their octet structure?

Complete the following:

What do you understand by the term, acid?

Water is never added to acid in order to dilute it why?

Define the term ‘basicity’ of an acid.

Give two examples of the following:

oxy-acid

Give two examples of the following:

hydracids

Give two examples of the following:
monobasic acid

Name the acid present in vinegar.

Give a balanced equation for reaction of nitrogen dioxide with water.

Explian the following:

Dil. HCl acid is stronger than highly concentrated acetic acid. 

Name an acid used to flavor and preserve food.

Name an acid used in a drink.

Name an acid used to remove ink spots.

Name an acid used as an eyewash.

What is the difference between an alkali and a base?

What is the difference between an alkali and a metal hydroxide?

Give one example in the following case:

A hydrogen containing compound which is not an acid.