Ureter and Urethra [function]

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

With reference to black soil, Give one chemical property of this soil.

The condition in which a pair of chromosomes carry similar alleles of a particular character.

An organic compound containing --COOH functional group. Identify the substance underlined.

The Graafian follicle, after ovulation turns into a hormone producing tissue called Corpus callosum.

Rewrite the correct statement by changing the underlined words of the statements.

1. Derive a relationship between S.I. and C.G.S. unit of work.
2. A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of force. What should be the value of θ
...

Which one of the following is a Greenhouse gas

1. Oxygen
2. Methane
3. Sulphur dioxide
4. Nitrogen

Laboratory preparation of Nitric acid

The type of immunity that exists in our body due to our genetic makeup.

Give appropriate biological / technical terms

Identify the substances underlined: The catalyst used to oxidise ammonia.

Action of heat on aluminum hydroxide.

Inert gases do not form ions.

State one relevant reason: Concentrated nitric acid appears yellow, when it is left for a while in a glass bottle.

Draw an electron dot diagram to show the formation of each of the following compounds:

1. Methane
2. Magnesium Chloride [H = 1, C = 6, Mg = 12, Cl = 17]

Differentiate between the following pairs based on the information given in the brackets.

1. Conductor and electrolyte (conducting particles)
2. Cations and anions (formation from an atom)
3. Acid and Alkali
...

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...