OBJECTIVE IMPORTANT QUESTION OF CHEMISTRY
ENGEENERING ENTRANCE AND MEDICAL ENTRANE EXAM-2013/2014 SUBJECT--CHEMISTRY Q1-Which of the following will not give co 2 gas with NaHSO 3. ? A) Phenol B) Succinic acid C) Benzoic acid D) Acetic acid Q2- Bezaldehyde reacts with acetic anhydride, gives- A) Benzoic acid B) Cinnamic acid C) Succinic acid D) Acetophenone Q3-Cacl 2 undergoes 20% dissociation. What is it vant Hoff factor- A) 1.6 B) 1.4 C) 2.4 D) 2.8 Q4-Which of the following compound have 1.732 magnetic moment- A) [Cucl 6 ] 4- B) [Crcl 6 ] 4- C) [Co (OH] 4- D) [ Zncl 6 ] 4- Q5-100ml of 0.2M CH 3 COOH mixed with 200 ml of o.1M CH 3 COONa. If PKa is 4