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Find out the number of following orders ...

Find out the number of following orders which are not correct against the mentioned properties:
`{:((a) " "CaH_(2) lt BeH_(2),("Electircal conductance in molten condition")),((b) " "LiH lt NaH lt CsH,("Ionic character")),((c) " "H_(2) lt D_(2) lt F_(2),("Bond dissociation enthalpy")),((d)" " NaH lt MgH_(2) lt H_(2)O,("Reducing property")):}`

Text Solution

Verified by Experts

The correct Answer is:
`0003`
(a), (c), (d) are incorrect.
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