(A) حرکت
(B) جزم
(C) تشدید
(D) تنوین
‘’All the four quantum numbers of two electrons in an atom are not the same’’ It is law of?
(A) Exclusion principle of Pauli
(B) Hund’s
(C) Uncertainty principle of Heisenberg
(D) Avogadro’s Law
In which of the following states maximum iron ore is found?
(A) FeCO3
(B) Fe2O3
(C) Fe3O4
(D) FeS2
Which among the following is a carbohydrate?
(A) Turpentine
(B) Nylon
(C) Cane-sugar
(D) Hydrogen peroxide
Cement is made hard with?
(A) Hydration and Dissociation of water
(B) Dehydration
(C) Dissociation of water
(D) Polymerization
What is the name of that system which uses radioactivity to decide the period of materials of pre historic period?
(A) Uranium dating
(B) Radium dating
(C) Carbon dating
(D) Deuterium dating
Beryllium sulphate is less soluble in water due to?
(A) Low energy of dissociation
(B) Low inflammable energy
(C) High inflammable energy
(D) Ionic bond
Which of the following is not a nucleon?
(A) Positron
(B) Electron
(C) Proton
(D) Neutron