Question : How many calories are there in a joule?
Option 1: 0.24
Option 2: 0.48
Option 3: 0.72
Option 4: 0.96
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Correct Answer: 0.24
Solution : The correct option is 0.24.
1 Joule = (0.2388 calories) approximately 0.24.
Joule (J) is the SI (International System of Units) unit of energy. It's a standard unit used in the metric system to measure energy, work or heat.
Calorie (cal) is a non-SI unit of energy commonly used in nutrition.
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Question : In India, what is the accepted average calorie requirement per person per day in urban areas?
Option 1: 2100 calories
Option 2: 2200 calories
Option 3: 2300 calories
Option 4: 2400 calories
Question : How many oxygen atoms are there in a molecule of acetic acid?
Option 1: 1
Option 2: 2
Option 3: 4
Option 4: 3
Question : How many oxygen atoms are there in an acetone molecule?
Option 1: 3
Option 2: 1
Option 3: 2
Option 4: 4
Question : How many hydrogen atoms are there in a molecule of methane?
Option 1: 2
Option 2: 6
Question : How many isotopes of hydrogen elements are there?
Option 2: 3
Option 4: None of the options is correct
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