The dand fblock elements - Result Question 58
####58. $CrO_3$ dissolves in aqueous $NaOH$ to give [1997]
(a) $Cr_2 O_7{ }^{2-}$
(b) $CrO_4^{2-}$
(c) $Cr(OH)_3$
(d) $Cr(OH)_2$
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Solution:
- (b) $CrO_3+2 NaOH \to Na_2 CrO_4+H_2 O$
####58. $CrO_3$ dissolves in aqueous $NaOH$ to give [1997]
(a) $Cr_2 O_7{ }^{2-}$
(b) $CrO_4^{2-}$
(c) $Cr(OH)_3$
(d) $Cr(OH)_2$
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