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BCl(3)+LiAlH(4)toA+LiCl+AlCl(3) A+H(2)...

`BCl_(3)+LiAlH_(4)toA+LiCl+AlCl_(3)`
`A+H_(2)OtoB+H_(2)`
`Boverset("Red heat")(to)C`. In this reaction sequence A, B and C compounds respectively are :

A

`B_(2)H_(5), B_(2)O_(3), B`

B

`B_(2)H_(6),H_(3)BO_(3), B_(2)O_(3)`

C

`B_(2)H_(6),H_(3)BO_(3), B`

D

`HBCl_(4),H_(3)BO_(3), B_(2)O_(3)`

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CH_(3)COOHoverset(LiAlH_(4))(rarr)(A), (A)+CH_(3)COOHoverset(H_(3)O^(+))(rarr)(B)+H_(2)O . In the above reaction 'A' and 'B' respectively are :

(i) P+C("carbon")+Cl_(2) to Q+CO uaarr (ii) Q+H_(2)O to R+HCl (iii) BN+H_(2)O to R+NH_(3) uarr (iv) Q+LiAlH_(4) to S+LiCl+AlCl_(3) (v) S+H_(2) to R+H_(2) uarr (vi) S+NaH to T (P,Q,R,S annd T do not represent their chemical symbols) Q. Compound T is used as a/an:

(i) P+C("carbon")+Cl_(2) to Q+CO uaarr (ii) Q+H_(2)O to R+HCl (iii) BN+H_(2)O to R+NH_(3) uarr (iv) Q+LiAlH_(4) to S+LiCl+AlCl_(3) (v) S+H_(2) to R+H_(2) uarr (vi) S+NaH to T (P,Q,R,S annd T do not represent their chemical symbols) Q. Compound Q has: (I) zero dipole moment. (II) a planar trigonal structure (III) an electron deficient compound (IV) a lewis base Chose the correct code:

(i) P+C("carbon")+Cl_(2) to Q+CO (ii) Q+H_(2)O to R+HCl (iii) BN+H_(2)O to R+NH_(3) uarr (iv) Q+LiAlH_(4) to S+LiCl+AlCl_(3) (v) S+H_(2) to R+H_(2) uarr (vi) S+NaH to T (P,Q,R,S annd T do not represent their chemical symbols) Q. Compound S is: (I) an odd e^(-) compound (II) (2c-3e^(-)) compound (III) a electron deficient compound (IV) a sp^(2) hybridized compound Choose the correct code:

In the reaction , (CH_(3))_(3)C CHO +HCHO overset(NaOH)underset("heat")toA+B the products (A) and (B) are respectively

4BCl_(3)+ 3LiAIH_(4) to A+ 3AlCl_(3)+3 LiCl When A reacts with NaOH it produces a colourless combustible gas and another compound 'B'. Select incorrect statement about 'B'

(i) P+C("carbon")+Cl_(2)toQ+CO uarr , (ii) Q+H_(2)OtoR+HCl (iii) BN+H_(2)O to R+NH_(3) , (iv) Q+LiAIH_(4) to S+LiCl+ AlCl_(3) (v) S+H_(2)toR+H_(2) uarr , (vi) S+NaH to T ( P,Q,R,S and T do not represent their chemical symbols) Compound S is

The correct statements among (a) to (d) are (a). Saline hyddrides produces H_(2) gas when reaction with H_(2)O . (b). Reaction of LiAlH_(4) with BF_(3) leads to B_(2)H_(6) (c). PH_(3) and CH_(4) are electron rich and electron precise hydrides, respectively. (d). HF and CH_(4) are called as molecular hydrides.

The correct statements among (a) to (d) are (a). Saline hyddrides produces H_(2) gas when reaction with H_(2)O . (b). Reaction of LiAlH_(4) with BF_(3) leads to B_(2)H_(6) (c). PH_(3) and CH_(4) are electron rich and electron precise hydrides, respectively. (d). HF and CH_(4) are called as molecular hydrides.

C_(6)H_(12)O_(6) + Ararr2C_(3)H_(4)O_(3)+ B . A & B in the above reaction are

VMC MODULES ENGLISH-p-BLOCK ELEMENTS-1-LEVEL 1
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  10. Which is correct regarding CO(2).

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