Substitution reactions are characteristic reactions of _____ .  (alkynes / alkenes / alkanes)

State one point of distinction between a District Judge and a Sessions Judge.

State the composition of the General Assembly.

Name two water harvesting systems practised in India.

Name the tree as per its characteristics: The wood is hard and suitable for ship building.

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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How does the magnitude of this non-contact force on the two bodies depend on the distance of separation between them?

Use a graph sheet for this question.

Take 1 cm = 1 unit along both x and y axis.

1. Plot the following points: A(0,5), B(3,0), C(1,0) and D(1,-5)
2. Reflect the points B, C and D on the y axis and name
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Give a reason: Kolkata receives heavier rain than Lucknow.

The Powers and Functions of the Indian Parliament are wide ranging. In this context, Mention any two Judicial powers and any two Electoral powers of the Indian Parliament.

Action of concentrated Nitric acid on Sulphur.

A metal oxide that can be reduced by hydrogen

The angle of elevation from a point P of the top of a tower QR, 50 m high is 60^o and that of the tower PT from a point Q is 30^o. Find the height of the tower PT, correct to the nearest metre.

Two bodies A and B have masses in the ratio 5:1 and their kinetic energies are in the ratio 125:9. Find the ratio of their velocities.

The power of a lens is -5D.

1. Find its focal length.
2. Name the type of lens.

A salt prepared by displacement reaction is _____. (ferric chloride, ferrous chloride, silver chloride)