2291: Chlorination is a process used for water-purification. The disinfecting action of chlorine is mainly due to
(a) The formation of hydrochloric acid when chlorine is added to, water
(b) The formation of hypochlorous acid when chlorine is added to water
(c) The formation of nascent oxygen when chlorine is added to water
(d) The formation of hydrogen when chlorine is added to water
2292: The earliest rock-cut caves in western India are those at
(a) Nasik, Ellora and Ajanta
(b) Junnar, Kalyan and Pitalkhora
(c) Ajanta, Bhaja and Kondane
(d) Bhala, Pitalkhora and Kondane
2293: Which of the following is not a feature of Gandhara School of Art ?
(a) It was patronised by Sakas and Kushanas
(b) It has Indian and Greek influence
(c) It resulted in the origination of Hinayanism
(d) It portrayed human figures exactly
2294: Water is filled in a container in such a manner that its volume doubles after every five minutes. If takes 30 minutes for the container to be full, in how much time will it be one-fourth full ?
(a) 7 minutes and 30 seconds
(b) 10 minutes
(c) 20 minutes
(d) 25 minutes
2295: The average annual temperature of a meteorological station is 26 degree Celcius, its average annual rainfall is 63 cm and the annual range of temperature is 9 degree Celcius. The station in question is
(a) Allahabad
(b) Chennai
(c) Cherrapunji
(d) Kolkata