Answer: The chemical formula of a substance contains the chemical symbols of all its constituent elements. The chemical formula contains the... View Article
Solution: If two different alkyl halides are used in the Wurtz reaction to prepare an alkane with an odd number of carbon atoms, then a mixture... View Article
(a) fish (b) amphibians (c) birds (d) mammals Solution: In incomplete double circulation, blood comes to the heart by two different routes... View Article
Answer: Democracy has the following key elements. (a) Rule by the People (b) Justice and Equality (c) Guarantee of basic human right to every... View Article
Answer: The transfer of pollen grains from the anther of a flower to the stigma of the same or a different flower is called pollination.... View Article
Answer: Applications of pressure are given below. When air is sucked out of a drinking straw, the air pressure inside it decreases, and the... View Article
(a) One share one vote (b) One man one vote (c) No vote (d) Multiple votes Solution: In a cooperative society, the principle followed is one... View Article
(a) 24 km/h (b) 25 km/h (c) 12 km/h (d) 37 km/h Solution: Let x be the distance from A to B. Time taken = distance travelled/speed Total... View Article
(a) organised (b) unorganised (c) Primary (d) None of these Solution: Workers in the organised sector enjoy job security. Hence option a is... View Article
Answer: The Internet is a worldwide collection of networked computers, which are able to exchange information with each other in a very fast... View Article