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Alkoxides of beryllium [Be(OR)(2)](6) us...

Alkoxides of beryllium `[Be(OR)_(2)]_(6)` usually have associated strutures with both `mu_(2)` - bridging and terminal OR groups. For example `[Be(OCH_(3))_(2)]_(6)` is a high polymer insoluble in hydrocarbon solvents. On the other hand, tertiary - butoxy derivative is less condensed being only a trimer `[Be(O-t-Bu)_(2)]_(3)`
The vapour phase, `BeCI_(2)` is

A

two coordinate with lienar structure

B

three coordinate with planar triangular structure

C

four coordinate with regular tetrahedral structure

D

four coordinate with irregular tetrahedral polymeric structure

Text Solution

Verified by Experts

The correct Answer is:
B
In vapour state `BeCI_(2)` is three coordinate with plannar triangular structure
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An organic compound (P) has carbon = 40%, hydrogen = 6.6%. Its vapour density is 90. It forms penta acyl derivatives. Though it gives positive Fehling's test and positive Tollen's test it does not have - CHO group. Compound (P) on oxidation gives two hydroxy acids (Q) and (R ). (Q) is a dihydroxy dicarboxylic acid with formula C_(4)H_(6)O_(6) while (R ) is a monocarboxylic acid with formula C_(2)H_(4)O_(3) . The compound (P) on methylation followed by oxidation gives another carboxylic acid C_(8)H_(14)O_(7) . (S) containing three methoxy groups The carbohydrate (P) is

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