How many of the following oxides are anhydrides of dibasic oxy-acid?
(i) $S O_{2}$
(ii) $P_{4} O_{10}$
(iii) $N O_{2}$
(iv) $C O_{2}$
(v) $L i_{2} O$
(vi) $C O$
(vii) $C l O_{2}$
(viii) $C l_{2} O$
(ix) $I_{2} O_{5}$

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Solution

The correct option is A 2
(i) $S O_{2} \to H_{2} S O_{3} (d i b a s i c)$
(ii) $P_{4} O_{10} \to H_{2} P O_{4} (t r i b a s i c)$
(iii) $N O_{2} \to H N O_{2} H N O_{3} (m o n o b a s i c)$
(iv) $C O_{2} \to H_{2} C O_{3} (d i b a s i c)$
(v) $L i_{2} O \to L i O H (n o t a n a c i d)$
(vi)CO $\to$ neutral
(vii) $C l O_{2} \to H C l O_{2} + H C l O_{3} (m o n o b a s i c)$
(viii) $C l_{2} O \to H O C l (m o n o b a s i c)$
(ix) $I_{2} O_{5} \to H I O_{3} (m o n o b a s i c)$
Hence, answer is 2.

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Similar questions

S O_{2}

P_{4} O_{10}

N O_{2}

C O_{2}

L i_{2} O

C O

C l O_{2}

C l_{2} O

I_{2} O_{5}

P_{4} O_{10}, C O, S O_{2}, C l O_{2}, C l_{2} O, N_{2} O, N O_{2}, C l_{2} O_{6}, C O_{2}, C l_{2} O_{7}, S O_{3}

(i)	Cell division	(ii)	Cell enlargement
(iii)	Pattern formation	(iv)	Tropic growth
(v)	Flowering	(vi)	Fruiting
(vii)	Seed germination	(viii)	Response to wounding
(ix)	Response to stresses of biotic and abiotic origin	(x)	Dormancy

	Functions of growth promoters	Functions of growth inhibitors
(a)	(i), (ii), (vii), (ix)	(iii), (iv), (v), (vi), (viii), (x)
(b)	(viii), (ix), (x)	(i), (ii), (iii), (iv), (v), (vi), (vii)
(c)	(i), (ii), (iii), (iv), (v), (vi), (vii)	(viii), (ix), (x)
(d)	(i), (ii), (iii), (iv), (v), (vi), (vii), (ix), (x)	(viii)