List of practice Questions

Which of the following exists as a covalent crystal in the solid state?

(A) Sulphur
(B) Iodine
(C) Phosphorus
(D) Silicon
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Arrange the following electron acceptors of Z-scheme of photosynthesis based on the movement of electron from P680 onwards.

(A) Iron-Sulphur Proteins
(B) Ferrodoxin
(C) Plastocyanin
(D) Plastoquinones
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Arrange the following in the order of increasing first ionization energy
(A) Beryllium (Be)
(B) Boron (B)
(C) Lithium (Li)
(D) Carbon (C)
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Arrange the following components in the order of their function in power supply

(A) Voltage regulator
(B) Rectifier
(C) Transformer
(D) Filter
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Arrange the following events in an increasing order (calendar year)

(A) Nobel Prize in Physics for Photoelectric Effect
(B) Nobel Prize in Chemistry for Quantum Dots synthesis and Applications
(C) Nobel Prize for the invention of Scanning Tunneling Electron Microscope
(D) Nobel Prize to Max Planck for his Quantum Theory
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Arrange the following in the order of increasing acidic strength
(A) HCl
(B) HBr
(C) HI
(D) HF
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Arrange the following in the order of increasing wavelength
(A) Lyman
(B) Balmer
(C) Paschen
(D) Brackett
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Arrange the following metals in the order of increasing work function
(A) Potassium (K)
(B) Cesium (Cs)
(C) Platinum (Pt)
(D) Calcium (Ca)
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The centre of negative charge distribution in a molecule may or may not coincide with the centre of the positive charge distribution. If it does not coincide, each molecule has a permanent dipole moment. Such materials are called

A dielectric slab is inserted between the plates of an isolated capacitor. The force between the plates will

If no thermal energy is developed as the charge goes through the battery, then such a battery is called

In a discharge tube electric conduction does not occur due to the movement of

Explanation for occurrence of monovalency in Group 13 is given by............

Which of the following is an example of electromagnetic waves?

Newton's law of cooling is a special case of

Principal Quantum number represents

Which of the following is incorrect as per rules for Linear Combination of Atomic Orbitals (LCAO)?

If an element of high electronegativity combines with an electropositive metal then the product will be

Acetophenone and Benzaldehyde can be distinguished by:
(A) Tollen's reagent
(B) DNP test
(C) Iodoform test
(D) Carbylamine test
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The packing fraction of a crystal structure is 74%. The crystal structure is

An s-orbital may combine with p-orbital provided that lobes of p-orbital are

Lyman spectral series is found in region of spectrum

Newton's laws of classical mechanics are replaced in quantum mechanics by.....

The laws of reflection and refraction are true for all surfaces and pairs of media at the