TN TET 2019 Paper 2 Math and Science Paper

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Question : 144 of 150

Marks: +1, -0

Gases produced during lightning are ________.
(i) NO₂
(ii) O₂
(iii) O₃
(iv) NO

(i) alone
(i) and (ii)
(i) and (iii)
(i) and (iv)

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