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The correct answer is B
Which one among the following fuels is used in gas welding?
Which of the following gas usually causes explosions in coal-mines?
Coffee, spinach, onion and tea in our diet mostly provide us with which of the following elements as food?
Calculate the work done when a force of 10 N moves an object 5 m at 60° angle to direction of force.
A person is hurt on kicking a stone due to –
Which of the following statements for the given chemical reaction is true?
Fe2O3 + 2Al
Biogas which is used for cooking purpose is a mixture of which of the following two components?
A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments –