List of practice Questions

Ethyl bromide is industrially prepared from

Equal masses of methane and oxygen are mixed in an empty container at $25^??$. The fraction of the total pressure exerted by oxygen is

Osmotic pressure of a solution is usually measured in

Genetically dwarf plants can be induced to grow tall by using

Hormone secreting cells called neurosecretory cells are abundant in the

Energy from food is released by

Which organelle is formed with RNA and protein ?

The stomata will open if their guard cells accumulate

Which does not replace hydrogen from $ HCl $ ?

$ _{11}N{{a}^{23}} $ is formed from $ _{11}N{{a}^{24}} $ by the

Glucose reacts with excess of phenyl hydrazine and forms

Which compound is aromatic?

Lithopone is

Natural rubber is a polymer of

$ PC{{l}_{5}} $ is possible but $ NC{{l}_{5}} $ does not exist

Electron deficient molecule is

Which does not reacts with Fehling solution?

During isothermal expansion of ideal gas, its

During favourable condition the encysted amoeba divides by multiple fission and produces pseudopodiospores. This phenomenon is known as

Double fertilization (or triple fusion) leading to initiation of endosperm in angiosperms, requires

DNA replication requires

DNA is acidic due to

Digestion of protein is completed in

Diameter of human eye lens is $2 \,mm$. What will be the minimum distance between two points to resolve them, which are situated at a distance of $50 \,m$ from eye? The wavelength of light is $5000\,??.

Different communities represented by combinations of mosses, herbs, shrubs and trees replacing one another during succession are referred as