Question

29. An element whose hydride when reacted with water would produce H2 gas is :
(A) CsH (B) BeH2
(C) AlH3 (D) SiH4
30. The number of ione pairs on oxygen in the complex Et2O.B F3 :
(A) 0 (B) 1
(C) 2 (D) 3​

Answer 1

A) D)3

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