State an important industrial use of Aluminium

What happens to the level of water when this setup is placed in

1. Humid conditions?
2. Windy conditions?

What can an individual do to reduce waste at home?

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers:

1. Give the genotype and phenotype of the plants of F₁ generation.
2. Mention the
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Write the structural formula of the two isomers of butane

A solid spherical ball of radius 6 cm is melted and recast into 64 identical spherical marbles. Find the radius of each marble.

A sound wave travelling in water has wavelength 0.4 m. Is this wave audible in air? (The speed of sound in water = 1400 ms^-1)

The canal through which the testes descend into the scrotum just before the birth of a male baby.

Give the Biological / technical term.

A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground.

1. What is the total mechanical energy possessed by the body at the height of 2 m assuming it is a
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Electrolysis of aqueous sodium chloride solution will form _____ at the cathode. (hydrogen gas / sodium metal)

State the conditions required for total internal reflection of light to take place

In the electroplating of an article with silver, the electrolyte sodium argento cyanide solution is preferred over silver nitrate solution.

Give reasons why:

Calculate the mass of ice required to lower the temperature of 300g of water at 40°C to water at 0°C.

(Specific latent heat of ice=336 J/g, Specific heat capacity of water=4.2 J/g^oC)

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

Give the structural formulae of each of the following

1. 2-methyl propane
2. Ethanoic acid
3. Butan – 2 – ol

The wax-like layer on the epidermis of leaves which reduces transpiration.