Best Science GK Questions for SSC Exams
A wire loop is rotated in a magnetic field such that the frequency of change of direction of the induced emf is
(A) Six times per revolution
(B) Four times per revolution
(C) Twice per revolution
(D) Once per revolution
Correct Answer : C
What happens to the force acting between the charged particles, if the distance between these charged particles is halved?
(A) It increases by four times
(B) It gets doubled
(C) It becomes half
(D) It reduces by one-fourth
Correct Answer : A
Explanation :
So, when the distance between the two charges is halved, the force is increased four times.
What does an electric dipole experience when it is kept in the non-uniform electric field?
(A) Only a force
(B) Only torque
(C) Force and torque both
(D) Neither force nor torque
Correct Answer : C
Explanation :
An electric dipole always experiences a torque when placed in uniform as well as non-uniform electric field. But in non-uniform electric field, dipole will also experience net force of attraction. So the electric dipole in non-uniform electric field experiences both torque and force.
Choose the correct statement
(A) A body can be accelerated by frictional force
(B) There can be zero friction
(C) Kinetic friction is greater than rolling friction
(D) Frictional force and area of contact between the two surfaces are proportional
Correct Answer : C
What are the conditions for gas like Carbon monoxide to obey the ideal gas laws?
(A) Low temperature and low pressure
(B) Low temperature and high pressure
(C) High temperature and low pressure
(D) High temperature and high pressure
Correct Answer : C
Explanation :
A real gas can behave as an ideal gas if volume of molecule is negligible and interaction between molecule is negligible. This will happen if number of molecule per unit volume is very small. This is only possible at high temperature and low pressure.
A proton donor is a ____________ substance.
(A) Proton genic
(B) Photophilic
(C) Amphoteric
(D) Amphiprotic
Correct Answer : A
Which of the following substances cannot act as both acid as well as a base?
(A) Amphoteric substance
(B) Amphiprotic substance
(C) Ampholyte
(D) Photophilic
Correct Answer : D
Lewis concept does explain the behaviour of __________
(A) Bases
(B) Salts
(C) Protonic acids
(D) Amphoteric substances
Correct Answer : C
Which of the following is the strongest hydracid known?
(A) HCN
(B) Hclo4
(C) HCL
(D) Hno3
Correct Answer : B
Which of the following methods is best suited for the separation of a mixture containing naphthalene and benzoic acid
(A) Crystallization
(B) Chromatography
(C) Sublimation
(D) Distillation
Correct Answer : C
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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