Answer all the Questions:
- The value of 1 amu is equal to:
(a) 1.66 × 10-24 g
(b) 12.00 × 10-24 g
(c) 1.992 × 10-24 g
(d) 1.0 g. - Which of the following is not possible?
(a) n = 2, l = 1, m = 0
(b) n = 2, l = 0, m = –1
(c) n = 3, l = 0, m = 0
(d) n = 3, l = 1, m = –1 - The correct order of decreasing first ionization potential is
(a) Ca > K > Rb > Cs
(b) Cs > Rb > K > Ca
(c) Ca > Cs > Rb > K
(d) K > Rb > Cs > Ca - The correct order regarding the electronegativity of hybrid orbitals of carbon is:
(a) sp < sp2 > sp3
(b) sp < sp2 < sp3 (c) sp > sp2 < sp3 (d) sp > sp2 > sp3 - Which one of the following is a correct set with respect to molecule, hybridization and shape?
(a) BeCl2, sp2, linear
(b) BeCl2, sp2, triangular planar
(c) BCl3, sp2, triangular planar
(d) BCl3, sp3, tetrahedral - A gas such as Carbon monoxide would be most likely to obey the ideal gas law at:
(a) Low temperature, high pressure
(b) High temperature, low pressure
(c) High temperature, high pressure
(d) Low temperature, low pressure - Internal energy of a substance/system is a:
(a) State function (b) Path function
(c) Work function (d) None - 2SO2 (g) + O2 (g) 2SO3 (g), in the reaction Kp and Kc are related as:
(a) Kp = Κc × (RT) (b) Kp = Kc× (RT)–1
(c) Kc = Kp × (RT)2 (d) Kp = Kc × (RT)–2 - One of the following species acts as both Bronsted acid and base:
(a) H2PO2– (b) HPO32–
(c) HPO42– (d) All of the above - Which of the following is a true peroxide?
(a) SO2 (b) BaO2
(c) NO2 (d) MnO2 - Inorganic benzene contains
(a) C, N, H (b) C, H, Al
(c) C, H, B (d) B, N, H - The inert form of carbon is:
(a) Graphite (b) Coal
(c) Diamond (d) Charcoal - Which of the following shows geometrical isomerism?
(a) But-1-ene (b) But-2-ene
(c) 2,3-dichlorobutane (d) Ethene - The IUPAC name of the following compound is
(a) 2,4,5-triheptene
(b) 2,4,6-triheptene
(c) hepta-1,3,5–triene
(d) 2,4,6-heptatriene - The reaction CH3Br + OH– CH3OH + Br–
follows:
(a) SN1 mechanism
(b) SN2 mechanism
(c) Either of the above two
(d) None of these - Which of the following is a non-crystalline solids’ pair?
(a) Diamond, wood
(b) Glass, table salt
(c) Wood, glass
(d) Sucrose, glass - Which of the following is a colligative property?
(a) Surface tension (b) Osmotic pressure
(c) Viscosity (d) Refractive index - Milk is a colloid in which:
(a) liquid is dispersed in liquid
(b) Gas is dispersed in liquid
(c) Sugar is dispersed in water
(d) Solid is dispersed in liquid - Which among the following is a synthetic polymer?
(a) Phenol-formaldehyde resin
(b) Proteins
(c) Polysaccharides
(d) Natural rubber - Clemmensen reduction is carried with
(a) LiAlH4 in ether
(b) Zn-Hg and HCl
(c) H2 in the presence of Pd
(d) NH2NH2/glycol and KOH