Chemistry MCQs
Practice free Chemistry multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1238 questions — no login required.
Question 1009medium
Among the fuels given below, the one with highest calorific value is
Question 1010hard
Which of the following is the best fuel in terms of energy released per gram of fuel?
Question 1011hard
The heat value of combustion of Gasoline is
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Question 1012hard
Which one of the following gases has the highest calorific value?
Question 1013hard
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in
Question 1014hard
If the equilibrium constants for the systems H2 + I2 -> 2HI and 2HI -> H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :
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Question 1015hard
The influence of temperature on reaction rate is predicted by
Question 1016hard
Which among the following is used as a catalyst in the production of high octane fuels?
Question 1017hard
Catalytic converters are generally made from :