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Which of the following gases emitted by ...

Which of the following gases emitted by motor vehicles is responsible for the formation of photochemical smog---

A

`SO_2`

B

CO

C

`NO_2`

D

`CO_2.`

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UNITED BOOK HOUSE-QUESTION PAPER 2018-EXAMPLE
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  9. How many neutrons are present in 5 xx 10^-1 moles of C6 ^14?

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  10. Determine the mass percentage composition of water (H=1. o=16).

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