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NEET levelSingle correct optionDifficulty 1 of 3bn168

Using Greek multiplicative prefixes for binary compounds of non-metals, name $Cl X_{2} O X_{7}$ .

Achlorine dioxide
Bdichlorine pentaoxide
Cdichlorine hexaoxide
Ddichlorine heptaoxide

Answer: D

Two Cl atoms give 'dichlorine' and seven O atoms give 'heptaoxide' (hepta = 7). Hexa is 6, penta is 5; chlorine dioxide is

ClO X_{2}

.

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