State an important industrial use of Aluminium

The divalent metal whose oxide is reduced to metal by electrolysis of its fused salt is ______ . (Al / Na / Mg / K).

Complete the following by selecting the correct option from the choices given:

1. pH of acetic acid is greater than dilute sulphuric acid. So acetic acid contains ______ concentration of H⁺ ions.
...

State two reasons for the launching of the Quit India Movement.

State three factors on which the rate of emission of electrons from a metal surface depends.

Define a kilowatt hour. How is it related to joule?

State the three functions of the Vice-President.

Ureter and Urethra [function]

Differentiate between the following pairs on the basis of what is indicated in the brackets.

Write a balanced chemical equation : Reduction of copper (II) oxide by hydrogen.

Read the extract given below and answer the questions that follow:

Abou Ben Adhem (may his tribe increase!)
Awoke one night from a deep dream of peace,

- Abou Ben Adhem, Leigh Hunt

(i) What did Abou...

Answer the following questions with reference to Ray Douglas Bradbury’s short story, ‘All Summer in a Day’

The diagram given below is that of a structure present in a human kidney.
Study the same and answer the questions that follow:

1. Name the structure represented in the diagram.
2. What is the liquid
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In an Arithmetic Progression (A.P.) the fourth and sixth terms are 8 and 14 respectively. Find the:

1. first term
2. common difference
3. sum of the first 20 terms.

Name the following organic compounds:

1. The compound with 3 carbon atoms whose functional group is a carboxyl
2. The first homologue whose general formula is C_nH_2n
3. The compound that reacts with acetic
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Mg²⁺, Cu²⁺, Na¹⁺, H¹⁺ (In the order of preferential discharge at the cathode)

State any four changes in the administration of the British Government as a consequence of the Revolt.