Consider the following statements concernig diborane. Which are correct :–
I. There is a free roation about B—B axis
II. All the H atoms are bonded to B atoms in a similar way.
III. Its final hydrolysis products are hydrogen and boric acid
IV. It forms addition compounds with ammonia

Consider the following statements concernig diborane. Which are correct :–

I. There is a free roation about B—B axis

II. All the H atoms are bonded to B atoms in a similar way.

III. Its final hydrolysis products are hydrogen and boric acid

IV. It forms addition compounds with ammonia

I & II

II & III

II & IV

I & IV

Solution

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Best answer

In `B_2H_2`, there is no B—B axis. 4 H atoms are bonded to B–atoms thorugh 2C – 2e bonds while two H atoms are bonded to two B-atoms through 3C – 2e bonds and therefore, form two bridges of B......H.....B.

Consider the following statements concernig diborane. Which are correct :–I. There is a free roation about B—B axisII. All the H atoms are bonded to B atoms in a similar way.III. Its final hydrolysis products are hydrogen and boric acidIV. It forms addition compounds with ammonia

Solution

Consider the following statements concernig diborane. Which are correct :–
I. There is a free roation about B—B axis
II. All the H atoms are bonded to B atoms in a similar way.
III. Its final hydrolysis products are hydrogen and boric acid
IV. It forms addition compounds with ammonia