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James watt invented steam engine. Hence, option B is correct.
The device that converts AC into DC is:
What is the chemical name of baking soda?
A mixture of carbon monoxide and hydrogen is known as ______
The process of depositing a layer of any desired metal on another material by means of electricity is called:
Diamond does not conduct electricity because of which of the following reason?
Which of the following solutions will not change the colour of blue litmus paper to red?
1. Acid solution
2. Base solution
3. Com...
Bakelite is a polymer which is used in the manufacturing of buckets and electrical switches. What are the monomers of bakelite?
Sphagnum is an important bryophyte. Consider the following statements about it:
What is the primary cause of tides on Earth?
Which bond is weakest in nature?
