10th science state level preparatory examination 2019 key answers
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1.k - minimum N - maximum
2.p student only
3.methane
4.zn
5.carboxylic acid
6.mitochondria
7.lithium
8.a abscisic acid
9.rhizopus
10.co2
2.p student only
3.methane
4.zn
5.carboxylic acid
6.mitochondria
7.lithium
8.a abscisic acid
9.rhizopus
10.co2
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ashwini25:
25.pg no 44 part 2 science text book 24.pg a no 53
part 1 science textbook
23.hypermetropia is a defect in the eye where the person cannot see nearby objects and can see far objects clearly the person can use a convex lens to correct this defect
22. DNA contains hereditary material DNA is made up of chromosomes which act like a vehicle in transferring the hereditary material from one generation to the other hereditary material are passed on from one generation to the other during DNA copying so there is importance of DNA copying in reproduction
20. Bleaching powder is prepared by using these reactants calcium hydroxide and the chlorine which we got from chlor alkali process these reactants combine and give bleaching powder chemical name is calcium hypochlorite plus water
ca(oh)2 + cl2 = caocl2 + h2o Bleaching powder is used in cotton and textile industry
19.pg no 90 part 2 science textbook
tqsm ashwini
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which are important questios as Carries'4 marks
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