1. The velocity of the chemical reaction doubles every 10 °C rise of temperature is raised by 50°C, the velocity of the reaction increases to about
32 times
20 times
16 times
50 times
2. The rate of a certain biochemical reaction in human body is hundred times faster than when carried out in laboratory. This implies that:
Ea of reaction is 2RT
Ea for the reaction in the body is less than Ea for the reaction in laboratory
Ea of reaction is zero
Ea can be determined iftemperature is given
3. 20 ml of HCI solution requires 19.85 ml of O.Q1 M NaOH solution for complete neutralization. The molarity ofHCI solution is. [MP PMT 1999]
0.0099
0.99
0.099
9.9
4. The correct order of C-X bond polarity is
CH3Br > CH3Cl > CH3I
CH3Cl > CH3Br > CH3I
CH3I > CH3Br > CH3Cl
CH3Cl > CH3I > CH3Br
5. How many grams of NaOH will be required to neutralize 12.2 grams of benzoic acid. [MP PMT 1999]
40 gms
16 gms
4 gms
12.2 gms