<<12345>>
6.

 A certain compound give a negative test with ninhydrin and positive test with Benedict's solution . The compound is 


A) a protein

B) a monosaccharide

C) a lipid

D) an amino acid



7.

 Which of the following sets of reactants is used for the preparation of paracetamol from phenol?


A) $HNO_{3},H_{2}/Pd,(CH_{3}CO)_{2}O$

B) $H_{2}SO_{4},H_{2}/Pd,(CH_{3}CO)_{2}O$

C) $C_{6}H_{5}N_{2}Cl,SnCl_{2}/HCl,(CH_{3}CO)_{2}O$

D) $Br_{2}/H_{2}O,Zn/HCl,(CH_{3}CO)_{2}O$



8.

If the ionisation energy and electron affinity of an element are 275 and 86 kcal mol-1 respectively, then the electronegativity of the element on the Mulliken scale is ?


A) 2.8

B) 0.0

C) 4.0

D) 2.6



9.

Which of the following does not exist?


A) $KI+I_{2}\rightarrow KI_{3}$

B) $KF+F_{2}\rightarrow KF_{3}$

C) $KBr+ICl_{2}\rightarrow K[BrlCl]$

D) $KF+BrF_{3}\rightarrow K[BrF_{4}]$



10.

 The dissolution of Al(OH)3 by a solution of NaOH results in the formation of 


A) $[Al(H_{2}O)_{4}(OH)_{2}]^{+}$

B) $[Al(H_{2}O)_{3}(OH)_{3}]^{}$

C) $[Al(H_{2}O)_{2}(OH)_{4}]^{-}$

D) $[Al(H_{2}O)_{6}(OH)_{3}]^{}$



<<12345>>