Isotopes have ______.
I. similar physical quantities and different chemical properties
II. different physical properties
III. similar chemical properties
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An electron loses potential energy when it
Which of the following statements are CORRECT?
I. Esters are sweet smelling substance.II Esters are used in making perfumes.III. Functional group of ester is R-O-RꞋ.
“One People, One State, One leader” was the policy of
Which of the following is used in pencils?
A pencil is an implement for writing or drawing. It is a thin core of graphite well mixed with clay, inside a wooden body as protective casing that prevents the core from being broken.
_______contributes towards global warming so it is called a greenhouse gas.
Which kind of power accounts for the largest share of power generation in India
The paintings in the Ajanta and Ellora caves are indicative of the development of art under the -
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