In an atomic nucleus, neutrons and protons are held together by: ___________...? Mcqs

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In an atomic nucleus, neutrons and protons are held together by: ___________...?

(A) Gravitational forces
(B) Exchange forces

(C) Coulombic forces
(D) Magnetic forces

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Electron pairs which are not shared by atoms are called...?

(A) Electron pairs
(B) Lone pairs

(C) Bond pairs
(D) Shared pairs

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Which of the following is/are the characteristics of reptiles...?

(A) Dry scaly skin
(B) Cold-blooded

(C) Lay eggs on land
(D) Lives in/on water/land

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A slow-running pendulum clock can be speeded up by_______________...?

(A) Increasing the length of the rod
(B) Increasing the weight of the bob

(C) Reducing the length of the rod
(D) Reducing the weight of the bob

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Biodiversity is effected with _______...?

(A) Pollution
(B) Deforestation

(C) Over hunting
(D) All of these

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A moving object always possesses...?

(A) Potential Energy
(B) Kinetic Energy

(C) Thermal energy
(D) Magnetic energy

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The chemical used as a fixer in photography is__________...?

(A) sodium sulphate
(B) borax

(C) sodium thiosulphate
(D) ammonium sulphate

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Chronometer is invented by________...?

(A) Robert Fulton
(B) Nikola Tesla

(C) Martin Cooper
(D) John Harrison

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Which of the following is/are multicellular organisms (many-celled)...?

(A) Fungi
(B) Plants

(C) Animals
(D) Both A and B

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Who developed the telegraph code...?

(A) Andre Ampere
(B) Samuel Morse

(C) Joseph Henry
(D) Jean Fourier

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