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) $110^{0}$
3 How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution ? A) $6.642\times 10^{25}$ B) $1.505\times 10^{25}$ C) $6.022\times 10^{25}$ D) $2.4088\times 10^{25}$
4 Which of the following is not present in baking powder? A) Potassium hydrogen tartrate B) sodium hydrogen carbonate C) Starch D) sodium carbonate
5 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
6 Which of the following is obtained by catalytic oxidation of ammonia? A) $N_{2}O$ B) NO C) $HNO_{2}$ D) $NO_{2}$
7 Which of the following actinoids exhibits only +3 oxidation state? A) Lr (Z=103) B) U (Z=92) C) Th (Z=90) D) Pa (Z=91)
8 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
9 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
10 What is IUPAC name of hydroquinone? A) Benzene-1,3,5-triol B) Benzene-1,2-diol C) Benzene-1,4-diol D) Benzene-1,2,4-triol
11 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
12 An element has a bcc structure with cell edge of 288 pm . The density of element is 7.2 g cm-3. what is the atomic mass of an element ? A) 25.89 B) 51.78 C) 77.68 D) 62.43
13 Which carbon atoms of $\alpha$- D- glucopyranose and $\beta $- D- fructofuranose respectively are linked together to form glycosidic linkage in sucrose ? A) C-2 of $\alpha$-D-glucopyranose and C-2 of $\beta $- D fructofuranose B) C-1 of $\alpha$-D-glucopyranose and C-2 of $\beta $- D fructofuranose C) C-1 of $\alpha$-D-glucopyranose and C-6 of $\beta $- D fructofuranose D) C-2 of $\alpha$-D-glucopyranose and C-3 of $\beta $- D fructofuranose ?
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 For the reaction , $N_{2}(g)+3H_{2}\rightarrow2NH_{3}(g) ; \triangle H$ is equal to A) $\triangle U+2RT$ B) $\triangle U-RT$ C) $\triangle U-2RT$ D) $\triangle U+RT$
