In known elements, the maximum number is of
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Improve the bracketed part of the sentence.
People in some rural areas don't get water to drink, (besides) many people in urban areas have water even for their pools.
A radioactive substance has a half life of four months, three-fourth of the substance would decay in
Which of the following statements are CORRECT?
I. Ethanol is a good solvent for organic compounds.
II. Boiling and melting points of ethanol are low with respect to water.
III. Ethanol is used tincture iodine
Which of the following plants is not capable of manufacturing own food?
Botany is also known as
Which one of the following is notan Air Defence Missile system?
Tatra not an Air Defence Missile System. It is a Czech manufacturer producing vehicles in Koprivnice. It is owned by the Tatra Trucks company, based in Ostrava, and is the third oldest company in the world producing cars with an unbroken history.
The isotopes of chlorine with mass number 35 and 37 exist in the ratio of