Chemistry objective Questions

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

[removed]32 times	[removed]20 times
[removed]16 times	[removed]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:

[removed]E_a of reaction is 2RT	[removed]E_a for the reaction in the body is less than Ea for the reaction in laboratory
[removed]E_a of reaction is zero	[removed]E_a 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]

[removed]0.0099	[removed]0.99
[removed]0.099	[removed]9.9

4. The correct order of C-X bond polarity is

[removed]CH₃Br > CH₃Cl > CH₃I	[removed] CH₃Cl > CH₃Br > CH₃I
[removed]CH₃I > CH₃Br > CH₃Cl	[removed] CH₃Cl > CH₃I > CH₃Br

5. How many grams of NaOH will be required to neutralize 12.2 grams of benzoic acid. [MP PMT 1999]

[removed]40 gms	[removed]16 gms
[removed]4 gms	[removed]12.2 gms

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