The force that a neutron exerts on a proton inside an atom is:
(A) Nuclear force
(B) Gravitational force
(C) Tidal force
(D) Electrostatic force
_____ solution is used to treat a bee sting.
(A) Lemon juice
(B) Milk
(C) Vinegar
(D) Baking soda
Give an example of a slat which gives an aqueous solution of pH less than 7.
(A) Sodium chloride
(B) Ammonium chloride
(C) Sodium carbonate
(D) Sodium bicarbonate
The atoms of Germanium, Arsenic, Selenium and Bromine contain _____ shells.
(A) 4
(B) 3
(C) 5
(D) 7
The gas usually filled in the electric bulb is.
(A)
(B)
(C)
(D)
Who suggested that most of the mass of the atom is located in the nucleus?
(A) Chadwick
(B) Dalton
(C) Thompson
(D) Rutherford
Species which has restricted distribution is called
(A) Eco species
(B) Endemic
(C) Sympatric
(D) Allopatric
The longest rail journey by Rajdhani Express is between……
(A) Hazrat Nizamuddin to Thiruvananthapuram
(B) Jammu to Thiruvananthapuram
(C) Jammu to Mumbai
(D) Saharsa to Amritsar
When ice melts, its
(A) Volume increases
(B) Volume decreases
(C) Volume and mass both decrease
(D) Volume decreases while mass increases
A rectifier is an electronic device used to convert
(A) AC voltage into DC voltage
(B) DC voltage into AC voltage
(C) Sinusoidal pulse into square pulse
(D) None of the above
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