List of practice Questions

The concept of chemical evolution is based on

Which one is the correct representation of $ NH_{4}^{+} $ ion?

The $ P-P-P $ bond angle in white phosphorus is

The fertilizer named Nitrolim is prepared by the use of

Which of the following is present in tenon?

Carborundum is the name of

The chemical which is known as the king of chemicals is

Soda ash is

The capacitance of a metallic sphere is $ 1\,\mu F, $ then its radius is nearly

The book origin of Species was written by

The $ABO$ blood grouping in human beings is an example for: i) Dominance ii) Incomplete dominance iii) Co-dominance iv) Multiple alleles

Term plasmalemma was given by

Sucking roots are present in the plant

Structurally a biodegradable detergent should contain a

Spirulina is a

Solubility product of silver bromide is $5.0 \times 10^{-13}$. The quantity of potassium bromide (molar mass taken as 120 g of $mol^{-1}$) to be added to 1 litre of 0.05 M solution of silver nitrate to start the precipitation of AgBr is

Somatostatin is secreted by

Soil that is best suited for plant growth is

Signet ring stage is found in

Sexual mode of reproduction in Protozoa

Select the incorrect statement.

Sea water is converted into fresh water based on the phenomenon of

Satellite DNA is useful tool in

'Ruminate endosperm' is found in

Root development is promoted by