Class Room Daily Dose Booklet: DDB No: Chemistry - Set 05 Answers and Explanations

 MAGME SCHOOL OF BANKING 

Class Room - Daily Dose Booklet

DDB NO: Chemistry 05

1 b) 450 seconds 

2 b) mol litre-1 sec-1

3 d) activation energy

4 c) k = Ae-Ea/RT 

5 d) Frequency factor

6 b) order 

7 b) parallel reactions

8 c) 6.932 x 10-2 min-1 

9 b) k [A]1/2

10 c) 2k1=k2=4k3 

11 a) 4.2 x 105 sec-1 

12 a) 10 min 

13 c) 40 minutes 

14 a) 200 min

15 a) 2 times

16 d) First order reaction

17 d) 69.3 x 10-2 min-1

18 a) high 

19 d) electrophoresis

20 d) lowering of activation energy

21 b)liquid in gas

22 c) true solution 

23 b) scattering of light

24 a) temperature increases 

25 d) they are easily assimilated and adsorbed

26 a) O/W 

27 c) Pd, partially inactivated by quinoline

28 c) it forms multimolecular layers on adsorbate

29 b) two liquids

30 c) Coagulation

31 a) MnO2 

32 c) Positive catalyst 

33 c) MnSO4 

34 c) H2S 

35 b) Milk of magnesia

36 a) Protein 

37 d) Lam black

38 b) Curd 

39 c) Pt 

40 c) C3H5(OH)3 and Pt 

41 b) Liquid and Solid

42 b) Initiate the reaction

43 b) solid in gas

44 a) solid in liquid 

45 a) As2O3 

46 a) Adsorption

47 c) Stabilisation of an emulsion 

48 a) peptizing agent 

49 c) starch

50 a) Tyndall effect 

51 b) CuCl2

52 a) colloidal silver 

53 c) Alcohol 

54 a) Silver sol 

55 c) MnO2 

56 a) Adsorption 

57 a) Solid-sol 

58 c) an electrical property of colloid 

59 b) electrolysis

60 c) Faraday 

61 c) electrochemical equivalent 

62 c) equivalent weight of the electrolyte

63 b) 140 ohm-1 cm2 eq-1

64 b) 0.2

65 b) decreases

66 c) it is only partially ionized 

67 b) K = α^2 C/(1-α)

68 a) CH3COOH 

69 pH = log 10 1/[H+]

70 a) 6 

71 b) 1 x 10-2 

72 b) 13

73 a) buffer solution 

74 a) [H+]= Ka [Acid]/[Salt]

75 c) weak organic acids or weak organic bases

76 b) phenolphthalein

77 b) -57.32 kJ equiv-1

78 b) Methyl orange

79 c) 0.1978 g 

80 b) Phenolphthalein

81 a) 3 

82 c) C2H5OH 

83 c) Alcohols 

84 d) primary > secondary < tertiary

85 b) formic acid

86 a) CH3MgI reacts with alcohol giving methane

87 c) alkyl chlorosulphite 

88 a) 1o alcohol 

89 c) 2-pentanone 

90 d) 2-methyl propan-2-ol

91 c) phenoxide ion is stabilized through delocalization

92 d) CH3OH

93 b) anion of p-nitrophenol is more stabilized by resonance than that of phenol

94 a) (CH3)3COH 

95 d) benzene

96 c) phenol 

97 c) functional isomerism 

98 b) nitrous acid

99 c) terephthalic acid 

100 c) oxidation by heating with copper followed by reaction with Fehling solution

101 d) all the above

102 c) glycerol 

103 a) 1 

104 b) Nitro glycerine

105 b) CH2 = CH2

106 a) Benzyl benzoate 

107 b) Mesoxalic acid

108 a) Carbolic acid 

109 c) 2 

110 b) metamerism

111 c) C2H5 – O – C2H5 

112 a) HI

113 d) Comparatively inert

114 c) Basic

115 b) C2H5OC2H5 

116 b) diethylether

117 d) Nucleophilic substitution reaction

118 a) peroxide 

119 b) Williamson’s synthesis

120 b) CH3-O-C2H5 

121 c) Alcohol 

122 d) Grignard reagent

123 a) they form explosive peroxide 

124 d) methylphenyl ether

125 a) o and p-bromo anisole 

126 b) ethoxy benzene

127 b) ethoxy ethane

128 a) Peroxides 

129 c) functional 

130 b) Lewis base

131 a) HI 

132 d) 3

133 b) protonation

134 a) 4 

135 b) diethylether

136 c) perchloro diethyl ether 

137 b) protonate

138 d) Anisole

139 b) butanal

140 b) acetaldehyde

141 c) acetone 

142 b) the iodoform test

143 d) 2-butanol

144 b) paraformaldehyde

145 c) ammoniacal silver nitrate 

146 a) Cu2O 

147 b) acetaldehyde

148 b) nucleophilic addition

149 d) benzaldehyde

150 c) CH3COCH3 

151 d) R-CH3

152 c) 3-hydroxy butanal 

153 b) nucleophile

154 c) aldehydes and ketones undergo nucleophilic substitution

155 c) CH3CHO 

156 a)4-methylpent-3-en-2-one 

157 b) benzophenone

158 c) benzaldehyde 

159 a) mesitylene 

160 d) CH3 CH2 CH2 OH

161 a) Acetone 

162 c) acetophenone

163 b) phenol and methanal

164 d) Benzophenone

165 b) phenyl methanol

166 b) Iodoform test

167 a) C2H5OH

168 d) Acetylene

169 d) An acyl halide with an alcohol

170 a) methane 

171 c) formic acid 

172 c) 2-methyl butanoic acid 

173 d) functional

174 b) formic acid

175 c) CH3CH2COOH < CH3COOH < HCOOH < ClCH2COOH

176 b) formic acid

177 c) H2 + CO2 

178 c) trichloro acetic acid 

179 a) acetic acid 

180 d) bicarbonate

181 d) greater resonance stabilization of their conjugate base

182 b) Cl3CCOOH

183 c) CH3CH(OH)COOH

184 a) CH3COCOOH 

185 d) calcium oxalate

186 b) succinic acid

187 a) acetyl salicylic acid 

188 a) ethane 

189 b) Acid chloride > Acid anhydride > Ester > Amide

190 a) C2H5NO2 

191 c) functional 

192 a) Sn/HCl 

193 c) CH3NHOH 

194 a) Toluene 

195 b) 1-nitro-2-propanol

196 d) nitrobenzene

197 d) m-dinitro benzene

198 b) C6 H5 – NHOH

199 c) nitronium ion 

200 c) CH3CH2CH2NH2