331. What is the electronic configuration of noble gases?
a) ns²
b) ns²np²
c) ns²np⁶
d) ns²np⁶nd¹⁰
332. Which of the following is not a noble gas?
a) Helium
b) Neon
c) Argon
d) Oxygen
333. Noble gases are also known as:
a) Inert gases
b) Reactive gases
c) Halides
d) Alkali metals
334. Why are noble gases considered inert?
a) They are highly reactive
b) They have a full outer electron shell
c) They readily form compounds
d) They have low electronegativity
335. Difference between crystalloids and colloids is known as?
(A) Colloidal size
(B) Diffusion
C. Particle size
(D) True solution
336. A gas has a 2-liter volume at STP at constant pressure, at which temperature will the new volume be 4 liters?
(A) 50 Degree Celsius
(B) 100 Degree Celsius
C. 150 Degree Celsius
(D) 200 Degree Celsius
337. Difference between particle mass and real mass is known as?
(A) Mass defect
(B) Volume defect
(C) Volume
D. None of the above
338. Stability of the nucleus is due to?
(A) Proton and electron
B. Proton and Neutron
(C) Neutron and electron
(D) None of the above
339. The brown atom is formed of which element when MnO2 and concentrated H2SO4 are added to them?
(A) Br2
(B) Cl2
C. NO2
(D) I2
340. Enthalpy of heat of formation of sodium ion from its atom is known as?
(A) Enthalpy of combustion
B. First ionization energy
(C) Enthalpy of atomization
(D) None of the above
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