List of practice Questions

Convex lens is used in the microscope due to the following reason
Air bubble in water behaves like a
The radius of curvature of a spherical mirror is 16 cm. What is the focal length ?
If the magnification of the mirror is greater than 1, then the mirror is
A virtual image is formed by a concave mirror when the object is placed
The lens which always give a diminished and virtual image is
Which molecules are responsible for the blue colour of the sky ?
Which of the following molecules has a triple bond?
Which of the following is not an ionic compound?
The gas formed when Zn is treated with dil. HCl is
The molecule in which the central atom has one lone pair of electrons in its valence shell is
Plaster of Paris is___
The bond angle in CH4 molecule is
The compound formed in the following reaction is
\(\text{CH}_3-\text{CH}_2-\text{OH} \xrightarrow[\text{Conc. H}_2\text{SO}_4]{170^\circ\text{C}} \text{?}\)
What is the prefix used for functional group aldehyde ?
Functional group present in carboxylic acid is
What is the slurry mass of food that forms in the mouth due to chewing called ?
The Ova (Gametes) produced by a woman contains how many types of sex chromosomes ?
Which acid renders the acidic pH in stomach for the activity of protein digesting enzymes ?
According to Mendel's first law the monohybrid phenotypic ratio is
Which hormone helps for the long time storage of seeds ?
Men produce sperms from which age onwards ?
Flowers having both the stamens and carpels are called
Which of the following organisms exhibit regeneration ?
What is the process of joining two stems to grow as a single plant ?