List of practice Questions

Arrange the following metals in the order of increasing work function
(A) Potassium (K)
(B) Cesium (Cs)
(C) Platinum (Pt)
(D) Calcium (Ca)
Choose the correct answer from the options given below:
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?
Which of the following properties is not observed in the case of Superconductors?
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
Choose the correct answer from the options given below:
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
The dimensions of electrical conductivity is
For the given carbon resistor, the resistance is \(2.4 \times 10^6 \, \Omega\). The sequence of colours in the strips provided on resistor is
Millikan's famous oil drop experiment established that
Which of the following is not the unit of energy?
An element naturally occurs in two isotopic forms. Which of the following statements is correct?
SI unit of pressure is
The statement "There is a plenty of room at the bottom" was given by