The science fiction book 'The Extra-Terrestrial Delivery' is penned by which Indian author?
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The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.
Which of the following compounds has a double bond?
Which is the CORRECT pair of inherited chromosomes for the child to be a girl?
An increase in expected future income will
If the resistance of a conductor is doubled, the current gets halved. This is because
The instrument used to measure Blood Pressure is
When does solar eclipse take place ?