Answer: Valency is the combining power of an element with another atom to form a chemical compound. Valence electron refers to electrons in the... View Article
(a) Maidservant (b) She servant (c) Servantess (d) none of these Answer: The feminine form of servant is maidservant. Hence option a is the... View Article
(a) Carbon dioxide (b) Iron (c) Oxygen (d) Nitrogen Solution: A compound is a substance formed from two or more elements chemically bonded... View Article
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
