List of practice Questions

Systemic heart refers to

The $10\%$ energy transfer law of food chain was given by:

Quartz is an example of:

Protein deficiency disease is:

Propionic acid and $KOH$ reacts to produce which one of the following?

Pneumatophores (respiratory roots) are found in:

Light travels faster in air than that in glass. This is accordance with :

In living beings ammonia is converted into urea through:

In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is $0.170$. The frequency of the wave will be:

Hydrochloric acid in the stomach is secreted by some special type of cells called:

$ H_{3}PO_{3}$ is:

Dehydration of alcohol involves:

Club moss is the common name of:

Cadmium rods are used for which purpose?

Which of the following turns potassium dichromate paper green?

Biological Oxygen Demand (BOD) is a measure of

An asymmetric carbon atom is which:

The most reactive hydrocarbon is:

Which will have maximum ionization energy?

Among the following compounds which is planar in shape is:

A wheel rotates with constant acceleration of $2.0$ radian / $\sec ^{2}$. If the wheel starts from rest the number of revolution it makes in the first ten second, will be approximately:

A cup of tea cools from $80^{\circ} C$ to $60^{\circ} C$ in one minute. The ambient temperature is $30^{\circ} C$. In cooling from $60^{\circ} C$ to $50^{\circ} C$. It will take:

Standing wave are produced in a $10 \,m$ long stretched string. If the string vibrates in $5$ segments and the wave velocity is $20 \,m/s$. The frequency is:

A ball falling in a lake depth $200\, m$ shows a decrease of $0.1 \%$ in its volume at the bottom then the bulk modulus of the material of the ball is:

A fixed volume of iron is drawn into a wire of length $ l. $ The extension $ x $ produced in this wire by a constant force $F$ is proportional to: