Two samples of water A and B have pH values of 4.4 and 6.4 respectively. How man

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Question
Two samples of water A and B have pH values of 4.4 and 6.4 respectively. How many times more acidic sample A is than sample B?
Options
A. 0
B. 50
C. 100
D. 200

Correct Answer

100

More questions

1. A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observed to be 80 km per hour and the jam density is estimated as 100 vehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively be
Options
A. 8000 vehicles per hour and 80 km per hour
B. 8000 vehicles per hour and 25 km per hour
C. 2000 vehicles per hour and 80 km per hour
D. 2000 vehicles per hour and 40 km per hour

3. Specific weight of liquid
Options
A. remains constant at every place
B. does not remain constant at every place
C. varies from place to place on the earth
D. does not vary on any other planet.

5. If the flame of a miner's safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains
Options
A. Hydrogen sulphide
B. Carbon dioxide
C. Methane
D. Oxygen
E. None of these.

6. For large vessels, the buoys are strengthened by connecting it to a number of anchors having
Options
A. one legged mooring
B. two legged mooring
C. three legged mooring
D. four legged mooring
E. all the types as above.

9. If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains
Options
A. Hydrogen sulphide
B. Carbon dioxide
C. Methane
D. Oxygen
E. None of these.

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