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maharashtra board previous year question paper maharashtra board previous year question paper class 10 question paper science 1 give an example of an endothermic reaction 2 write two observations you would make when quick lime is added to water 3 classify the following reactions into slow and fast reaction reaction between an acid and a base rusting of iron 4 what is the s.i unit of electric potential 5 what is an oxidation reaction identify in the following reaction the substance oxidized and ii the substance reduced zno c zn co 6 why does carbon form compounds mainly by covalent bonding 7 list any two reasons for carbon forming a very large number of compounds know more about previous year question papers for gujarat board boards.edurite.com page 1/3

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8 an organic acid `x is a liquid which often freezes during winter time in cold countries has the molecular formula c2h4o2 on warming it with ethanol in the presence of a few drops of concentrated sulphuric acid a compound `y with a sweet smell is formed identify `x and `y write a chemical equation for the reaction involved 9 what is a homologous series of compounds list any two characteristics of a homologous series 10 what would be observed on adding a 5 solution of alkaline potassium permanganate solution drop by drop to some warm ethanol taken in a test tube 11 write the name of the compound formed during the chemical reaction 12 how would you distinguish experimentally between an alcohol and a carboxylic acid on the basis of a chemical property 13 choose a metal out of the following which reacts with hot water but not with cold water sodium magnesium iron mention the products formed during the reaction 14 out of the two equatorial and polar orbits of man-made satellites which one is suitable for collection of data for weather prediction why a what is meant by ph of a solution b state one difference between a strong electrolyte and a weak electrolyte.give one example of each 15 give the names of the functional groups cho c=oh 16 give arrhenius definition of an acid and a base choose strong acid and strong base from the following ch3cooh nh4oh koh hcl read more about previous year question paper for karnataka board boards.edurite.com page 2/3

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thank you boards.edurite.com

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