List of practice Questions

Electronic configuration of d⁶ when Δ_a < P

In the given reaction, the end-product is-

C is-

Co-ordination compounds present in following biological systems :
A. Chlorophyll
B. Haemoglobin
C. Vitamin B₁₂
D. Enzymes
E. Roots
Choose the correct answer from the options given below :

\(MnO_4^-\) + H₂O + I^- → MnO₂ + OH^- + X
Compound ‘X’ in the above reaction is :

Which of the following statements relating to the acidic character of alcohols is not true ?

Arrange the following in increasing order of their basic strength :
A. NH₃
B. AsNH₃
C. PH₃
D. BiH₃
E. SbH₃
Choose the correct answer from the options given below :

Order and molecularity in the given reaction is
CHCl₃ + Cl₂ → CCl₄ + HCl
Rate = \(k[CHCl^3][Cl_2]^{\frac{1}{2}}\)

Arrange the following in increasing order of their boiling points :
A. CH₃CH₂CH₂CHO
B. CH₃CH₂CH₂CH₂OH
C. C₂H₅OC₂H₅
D. CH₃CH₂CH₂CH₂CH₃
E. CH₃CH₂CH₂COOH
Choose the correct answer from the options given below :

The sodium soap prepared from glyceryl palmite
(C₁₅H₃₁COO)₃C₃H₅ is :

The canary bird is used to detect ________ gas in the Singareni coal of fields.

The potential of a uniformly charged spherical shell at a point r/2 from its centre is 5 V. The potential at its surface is:
(Given radius of shell = r)

The capacitance of capacitor increases when :
(A) its charge increases
(B) its supply voltage decreases
(C) common area of the plates increases
(D) separation between the plates decreases
Choose the correct answer

Two point charges +4µC and -2µC are placed at a certain distance in air. They experience an attractive force F. If they are brought in contact with each other and then separated to the same distance, the new repulsive force between them will be :

A spherical conducting shell of inner radius r₁ and outer radius r₂ has a charge Q. A charge q is placed at the centre of the shell. The surface charge density on outer surface of the shell is:

Two charges 5 µC and -2 µC (with no external field) are placed at (-9 cm, 0, 0) and (9 cm, 0, 0) respectively. The work required to separate the two charges infinitely away from each other is :

An infinite line charge produces an electric field of 9 × 10⁶ N/C at a distance of 20 cm. The linear charge density will be :

When a ray of light enters from denser medium to rarer medium, its velocity is doubled. The critical angle for total internal reflection will be:

Which of the following is/are responsible for the formation of Rainbow?
(A) Dispersion of light
(B) Interference of light
(C) Reflection of light
(D) Refraction of light
Choose the correct answer from the options given below:

The shape of graph between 1/u and 1/v in case of a convex lens is:

At what speed should a galaxy move with respect to earth so that spectral line of 600.0 nm appears as 600.6 nm?

Let us consider interference between two sources of intensities I and 4I. What will be the intensity at points where the phase difference is π?

Two polaroid P₁ and P₃ are placed such that their pass-axis are mutually perpendicular. Another polaroid P₂ is rotated between P₁ and P₃. For what angle θ between P₁ and P₂ the intensity of light emerging from P₃ will be maximum?

The graph showing correct variation of photo current with intensity of incident light:

Electron and Photon have same de Broglie wavelength, which of the following is true for their momentum:

Which of the following graph correctly shows the relation between photoelectric current (I) and wavelength (λ) of incident radiation