reform day school

Production of aromatic hydrocarbons (arenes) like benzene, toluene and xylenes. Earlier the bulk of arenes were obtained from coal tar, but now they are derived from petroleum by the process of reforming. Increasing the octane number of straight-run gasoline by increasing the proport..

On which day of the week does the last day of the month shown fall? => Sunday or Tuesday or Saturday or Monday..

Joe made 72 paper boats on the fifth day. Each day he made 9 more than that he made on the previous day. How many paper boats did he make on the first day? => 72 or 27 or 45 or 36..

Long day plants, which bloom when light duration is more than 12 hrs per day. Examples: Beet roots, carrot, oats and r..

Long day plants flower when the day length is greater than a certain critical length, say twelve hours. Examples: Pisum sativum, Triticum aesativum, Beta vulgaris, Onion, carrot and spinac..

They flower when the day length is less than a certain critical length say 12 hrs. If these plants are exposed to day lengths in excess of this critical point, they continue growing vegetatively. Examples: Nicotiana tabacum, soyabean, strawberry, oryza sativa, chenopodium, cockl..

Day neutral plants, which show little response to length of day light. Examples: Cucumber, cotton and potato. Light also affects movement in some plants. This is called heliotropism or phototropism. Light promotes the growth in most of the plants by promoting the developmen..

18 people can do a work in 28 days. How many days will 24 people take to do the same work? => 21 days or 15 days or 20 days or 36 days..

16 people can do a work in 24 days. How many days will 32 people take to do the same work? => 16 days or 20 days or 24 days or 12 days..

Today is friday. Which day of the week was it 7 days earlier? => sunday or tuesday or friday or thursday..