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The number of naturally occurring element is : 92, 98, 108, 114
The M-shell can accommodate maximum number of electrons : 2, 8, 18, 32
The Scientist who present the concept of orbital around the nucleus is : J.J Thomson, Rutherford, Bohr, Planks
Which one is not noble gas : Helium, Hydrogen, Neon, Argon
Which type of covalent bound is present in nitrogen (C2H2) molecule : Single Covalent bound, Double Covalent bound, Triple Covalent bound, Single and double covalent b
Which one of the following gas diffuses fastly : Hydrogen, Helium, Chlorine, Fluorine
The S.I unit of pressure is : N-2 m, Nm-2, N-1m-2, Nm
Brass is an example of which one of the following solution : Liquid in Solid , Gas in gas, Liquid in liquid, Solid in solid
The component of a solution which is present in large quantity is called : Solute, Solvent, Solubility, True solution
The oxidation number of nitrogen in HNO3 is : -3, + 6, + 5, + 3
Which of the following reaction is a oxidation reaction : K+ + le - ------->K, Cl2 + 2e ------>2c, Fe2-------->Fe3, Na+1 + le ------>Na
Which one of the following metal is less malleable : Iron, Gold, Sodium, Silver
The mass of an electron is : 1.672 X 10-24 KG, 1.672 X 10 -24 G, 9.106 X 10 28 KG, 9.106 X 10 -28 G
The Isotopes of carbon are : 2, 3, 4, 5
The concept of orbit was introduced by : J.J Thomson, Rutherford, Bohr, Planks
Mendeleevs Periodic table was Based upon : Electronic configuration, Atomic Mass, Atomic number, Mass number
which one is a non-polar molecule : HCl, HNO3, H2, h2o
The density of water is : 1.00 gcm-3, 1.08 gcm-3, 0.108v gcm-3, 0.001 gcm-3
Which one of the is a not amorphous Solid : Rubber, Glucose, Glass, Plastic
Brass is an example of which one of the following solution : Liquid in Solid , Gas in gas, Liquid in liquid, Solid in solid
Which is a solution of gas in gas : Air, Mist, Fog, Smoke
The oxidation number of Chlorine in Kclo3 is : + 3, 4, + 5, + 6
The oxidation number of nitrogen in HNO3 is : + 3, + 5, + 2, + 6
The melting point of sodium is : 95 °C, 96 °C, 97 °C, 98 °C