List of practice Questions

If the focal length of a spherical mirror is 10 cm, what is the value of radius of curvature?

If a convex lens is placed in water, it's focal length

Which of the following is the formula for magnification in case of spherical mirror?

Every lens has ____ focal points.

Parallel beam of light after passing through a convex lens pass through a point called

Mixing acid to water is

Four quantum numbers of valence electron of sodium

Colour of anhydrous \(CuSO_4\) is

Bleaching Powder is formed from

The total number of atomic orbitals in third shell of an atom

Which one of the following electromagnetic radiation has more frequency?

Order of energy of orbitals

The classification of elements which is based on atomic number is

Which of the following electronic configuration violating Hund's rule ?

The mode of nutrition in Paramoecium ____ .

The fluids secreted from seminal vesicles, prostate gland and Cowper's gland collectively called seminal plasma. The seminal plasma along with sperm is called _____ .

The phrase Omnis cellula e cellula, or cells arise from pre-existing cells was proposed by

Growth of a Plant in response to a light stimulus is known as

Transfer of pollen grains from anther to stigma of the same flower is called ____ .

A potentiometer with a cell of 2.4 volts and internal resistance of 2 Ω maintains potential drop across the resistance wire AB of length 2 m and resistance 10 Ω. A standard cell that maintains a constant EMF of ‘V’ volt with an internal resistance of 0.2 gives a balance point at 1.6 M length of the wire. The value of EMF of the second (standard) cell(V) is:

If A is a skew symmetric matrx, then \(A^ {2021}\) is

Which of the following artificial sweeteners can be used in soft drinks only?

The equilibrium constant, \(K_C\) for \(3C_2H_2(g) \rightleftharpoons C_6H_6(g)\) is 4 L\(^2\)mol\(^{-2}\). If the equilibrium concentration of benzene is 0.5 mol/L, then what is the value of concentration of ethylene?

A commercially sold conc. HCl is 35% HCl by mass. If the density of this commercial acid is 1.46 g/mL, the molarity of this solution is :
(Atomic mass : Cl = 35.5 amu, H = 1 amu)