Name the following: The location of an iron and steel industry set up with German collaboration.

A pendulum has a frequency of 4 vibrations per second. An observer starts the pendulum and fires a gun simultaneously. He hears the echo from the cliff after 6 vibrations of the pendulum. If the...

State one relevant observation: A piece of sodium metal is put into ethanol at room temperature.

Give appropriate biological or technical terms for the following:

Process of maintaining water and salt balance in the blood.

1. real and apparent depth?
2. velocity of light in vacuum or air and the velocity of light in a given medium?

Using the factor theorem, show that (x - 2) is a factor of 𝑥³ + 𝑥² - 4𝑥 - 4. Hence factorise the polynomial completely.

The following table represent the elements and the atomic number.

With reference to this, answer the following using only the alphabets given in the table.

1. Which element combines with hydrogen to form
...

State any two objectives of the Muslim League.

You have three resistors of values 2Ω, 3Ω and 5Ω. How will you join them so that the total resistance is more than 7Ω?

1. Draw a diagram for the arrangement.
2. Calculate the equivalent resistance.

Give one word or a phrase: The reaction in which carboxylic acid reacts with alcohol in the presence of conc. H₂SO₄ to form a substance having a fruity smell.

The solvent used to dissolve the chlorophyll pigments while testing a leaf for starch is Soda lime.

Rewrite the correct statement by changing the underlined words

State one advantage of roadways.

Alkali metals are good reducing agents.

A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide, is:

1. Calcium chloride
2. Ferrous chloride
3. Ferric chloride
4. Copper chloride

Name the particles present in: Weak electrolyte

(i) Why is a nuclear fusion reaction called a thermo nuclear reaction?

(ii) Complete the reaction:

³He₂ + ²H₁ → ⁴He₂ + .... + Energy