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

Give suitable biological reason: The birth rate in India is very high.

(i) Define moment of force.

 (ii) Write the relationship between the SI and CGS unit of moment of force.

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

The placenta is an important structure for the development of a foetus.

Give biological explanation.

The Executive Power of the Indian Union is vested in the President. In this context, answer the following:

1. How is the President of India elected? State the composition of the Electoral College that
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Ice like crystals formed on cooling an organic acid sufficiently.

The repeating components of each DNA strand lengthwise.

Give the Biological / technical term.

The conflict between the two sections of the Congress came to surface in its Session in 1906 at Calcutta. In this context explain the Split in the Congress in 1907

In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

1. What is the phenotype and genotype of the F1 generation if a plant bearing pure axial flowers is crossed with a
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Write balanced chemical equations to show:

1. The oxidizing action of concentrated Sulphuric acid on Carbon.
2. The behavior of H₂SO₄ as an acid when it reacts with Magnesium.
3. The dehydrating property of
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A uniform meter scale is in equilibrium as shown in the diagram:

1. Calculate the weight of the meter scale.
2. Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is
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The process by which certain ores, specially carbonates, are converted to oxides in the absence of air.

(i) State the volume occupied by 40 gm of methane at STP, if its vapour density (V.D.) is 8.

(ii) Calculate the number of moles present in 160 gm of NaOH. [Atomic Mass: Na = 23, H = 1, O = 16]

The percentage composition of a gas is: Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]

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.