Formation of ammonia from nitrogen and hydrogen is an example of __________ reaction.

SI unit of heat is

A chain reaction is continuous due to

Quick lime is dissolved in water is a ______________ process.

Distance between two consecutive compressions is

_____ determines speed of light in a medium.

The first period of the modern periodic table has ________ elements.

Atomicity of Chlorine and Neon is

When you paddle a canoe, the canoe goes forward. This is an example of _______

A force is applied by direct physical contact between two bodies is

The resistance of material depends on.

The resistance of a body to change its state of motion is called

Soil erosion can be prevented by

All files are stored in the _____________

The region of the chromosome where the spindle fibres get attached during cell division

Avena coleoptile test was conducted by

We can cut the DNA with the help of

Syngamy results in the formation of____________

The best way of direct dating fossils of recent origin is by

There are ________ pairs of cranial nerves and _______ pairs of spinal nerves.

Metastasis is associated with

The wall of human heart is made of

The body of leech has

The chemical equation Na₂SO_4(aq) + BaCl_2(aq) → BaSO_4(s)↓ + 2NaCl_(aq) represents which of the following types of reaction?

Identify the non aqueous solution.

_____ is a relative periodic property.

Which is formed during anaerobic respiration

____________ isotope is used for the treatment of cancer.

Rectified spirit is an aqueous solution which contains about _______ of ethanol

The frequency, which is audible to the human ear is

Mass of 1 mole of Nitrogen atom is

In a simple circuit, why does the bulb glow when you close the switch?

Temperature is the average ______ of the molecules of a substance

Magnification of a convex lens is

In which of the following sport the turning of effect of force used