List of top Questions asked in CUET (UG)

KMnO₄ + H₂SO₄ + X → MnSO₄ + K₂SO₄ + H₂O + CO₂
Identify X :

During electrolytic refining of copper, some metals settle as anode mud. These metals are :
A. Selenium and Tellurium
B. Silver and Gold
C. Gold and Platinum
D. Zinc and Platinum
E. Selenium, Gold and Platinum
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Match List I with List II

List I		List II
A.	Rosenmund reduction	I.	CrO2Cl2CS2,H3O+
B.	Etard Reaction	II.	CO, HCl Anhyd. AlCl3/CuCl
C.	Gamenman-Koch reaction	III.	H2-Pd-BaSO4
D.	Clemmensen reduction	IV.	Zn-Hg/HCl

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The bond angle in methanol is :

Electronic configuration of d⁶ when Δ_a < P

Which of the following compounds contain at least one secondary alcoholic group :

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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:

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?

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 parallel beam of monochromatic light of wavelength 460 nm passes through a long slit of width 0.1 mm. What is the angular divergence in which most of the light is diffracted?

For a medium with permittivity (e) and permeability (µ), the speed of light (v) is given by:

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 :

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

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

The change of gaseous state directly to solid state without going through liquid state is called_____

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

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
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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 :

C.V. Raman got Nobel Prize in 1930 for his discovery of:

The logic gate realised using p-n junction diodes in the given figure is:

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

A radioactive isotope phosphorous-32 has an initial activity 10μCi and has half life of 14 days. What is the activity of the source after 42 days?

Which of the following statements are correct?
(A) The resistivity of a semiconductor decreases with increasing temperature.
(B) The potentiometer is unaffected by the internal resistance of the source.
(C) In ionic crystals and electrolytic liquids electrons carry the electric current.
(D) Ohm's law fails if V depends on I non-linearly.
(E) Kirchhoff's rules are used for analysis of electric circuits.
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Choose the correct statements:
(A) A nuclide is represented as \(^Z_AX\)
(B) Nuclids with same number of protons are called isotopes
(C) a-ray scattering experiments allow determination of the nuclear radius
(D) Nuclids with same number of neutrons are called isotones
(E) The nuclear force distinguishes between neutron and proton
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