Which property of sulphuric acid is shown by the reaction of concentrated sulphuric acid with:

1. Ethanol?
2. Carbon?

Write a balanced chemical equation: Reaction of excess ammonia with chlorine.

The difference of two natural numbers is 7 and their product is 450. Find the numbers.

Correct the following statements by changing the underlined words: The outermost layer of Meninges is Pia mater.

What is meant by the term "Veto" power?

State the three functions of the Vice-President.

Why does alluvial soil differ in texture?

The 4^th term of a G.P. is 16 and the 7^th term is 128. Find the first term and common ratio of the series.

What is meant by Lok Adalats?

The organic compound which undergoes substitution reaction is

1. C₂H₂
2. C₂H₄
3. C₁₀H₁₈
4. C₂H₆

The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:

1. Label the parts numbered 1 to 3 in the diagram.
2. Mention any two functions
...

When a current carrying conductor is placed in a magnetic field, it experiences a mechanical force. What should be the angle between the magnetic field and the length of the conductor so that the...

Name three traditional means of irrigation.

40 students enter for a game of shot-put competition. The distance thrown (in metres) is recorded below:

Use a graph paper to draw an ogive for the above distribution. Use a scale of 2 cm = 1 m on one...

Write balanced chemical equations for each of the following:

1. When excess of ammonia is treated with chlorine.
2. An equation to illustrate the reducing nature of ammonia.

A man invests ₹4500 in shares of a company which is paying 7.5% dividend. If ₹100 shares are available at a discount of 10%. Find:

1. Number of shares he purchases.
2. His annual income.