Match the following: Tardigrade Question Mathematics Match the

Tardigrade Question Mathematics Match the following : Column I Column II A There are 5 balls of different colours and 5 boxes of colours same as those of the balls. The number of ways in which the balls, one in each box, could be placed such that atleast 2 balls go to the box of its own colour is P 30 B Number of divisors of 1980 that are composite numbers, is Q 31 C Number of seven digit natural numbers in which both 2 and 3 are present as digits if no two 2 's are consecutive in any number ... JEE Main 2020: Match the following : Test/Method Reagent (i) Lucas Test (a) C6H5SO2Cl/aq. KOH (ii) Dumas method (b) HNO3/AgNO3 (iii) Kjeldahl's method Solution: A-II, B-I, C-IV, D-III (A) S O2 Acid rain is caused by chemical reaction that begins when compounds like sulphur dioxide and nitrogen oxides are released into the air. There amount can rise very high into the atomosphere, where they mix and react with water, oxygen and other chemicals to form more acidic pollutants, known as acid rain. (B) Photochemical smog is a mixture of air pollutants which have been chemically altered into further noxious compounds by exposure to sunlight. The ... NTA Abhyas 2022: Match the following : Column-I Column-II A. First cellular form of life I. 350 million years ago B. Invertebrates were formed II. 2000