1 What is the value of C-O-H bond angle in CH3- OH ? A) $107^{0}$ B) $108.9^{0}$ C) $109.5^{0}$ D) $110^{0}$
2 Which among the following components belongs to lipdis? A) BHA B) Novestrol C) Terpenes D) Cloroxylenol
4 If concentration of reactant 'A' is increased by 10 times the rate of reaction becomes 100 times . what is the order of reaction. if rate law is rate = k[A]x ? A) 3 B) 2 C) 4 D) 1
5 Which of the following is not present in baking powder? A) Potassium hydrogen tartrate B) sodium hydrogen carbonate C) Starch D) sodium carbonate
6 Which among the following is an example of allylic alcohol? A) Propane-1,3-diol B) 2-methylbut-3-en-2-ol C) propane-1,2,3-triol D) 2-phenyl propane-2-ol
7 Which of the following is obtained by catalytic oxidation of ammonia? A) $N_{2}O$ B) NO C) $HNO_{2}$ D) $NO_{2}$
8 Which of the following reaction of diazonium salt involves retention of diazonium group? A) Reaction with phosphinic acid B) Reaction with dilute sulphuric acid C) Reaction with HCl and Cu powder D) Reaction with phenol
9 Identify compound 'B' in following series of reactions? Acetonitrile $\underrightarrow{Na/alcohol}$ A $\underrightarrow{NaNo_{2}/dil.HCl}$ B A) Ethyl amine B) Nitroethane C) Ethyl alcohol D) Ethyl chloride
10 An acyl chloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as A) Wolff-Kishner reduction B) Etard reaction C) Rosenmund reduction D) Stephen reaction
11 The equilibrium constant for a reaction is 20. what is the value of $\triangle G^{0}$ at 300 K ? (R=8 x 10-3 kJ) A) 16.63 kJ/mol B) -5.527 kJ/mol C) -2.763 kJ/mol D) -1.663 kJ/mol E) None of these
12 An element crystallises in a bcc lattice with cell edge of 500 pm. The density of the element is 7.5 g cm-3. How many atoms are present in 300g of metal? A) $6.4\times 10 ^{23}$ atoms B) $12.8\times 10 ^{23}$ atoms C) $3.2\times 10 ^{23}$ atoms D) $1.6\times 10 ^{23}$ atoms
13 Which among the following compound is not optically active? A) 3-chloro-2-methyl pentane B) 3- chloropentane C) 2-chloropentane D) 2-chloro-3-methyl pentane
14 A first-order reaction is 25 % completed in 40 minutes. What is the rate constant k for the reaction? A) $\frac{2.303\times \log1.33}{40}$ B) $2.303\times \log\frac{4}{3}$ C) $\frac{2.303\times \log4}{40\times3}$ D) $\frac{2.303 }{40}\times\log \frac{1}{4}$
15 Identify the correct decreasing order of densities of d-block elements A) V > Cr > Fe > Ni B) Ni > Fe > Cr > V C) Fe > Ni > V > Cr D) Cr > Fe > V > Ni