Question

Complete the following sentences using suitable Prepositions:
(1) There is some doubt __ the truth __ this statement.
(2) They were quarrelling __ something __ which I was ignorant.
(3) l exchanged my horse ___ a cow.
(4) Wagging the tail to show pleasure is a custom peculiar ___ dogs.
(5) His work in class was worthy __ praise.
(6) My friend was indignant __ his behaviour and also angry ___ me.
(7) He married this daughter __ a rich man. I know him by sight only. I was not introduced __ him.
(8) I am __ some obligation __ him.
(9) Health is preferable ___ wealth.
(10) There are few men who are satisfied ___ their lot
(11) My brother objects __ my going out for an excursion. I have reasoned __ him __ the necessity __ having some recreation, but he is not a man to surrender ___ arguments.
(12) l agree __ your proposal as you have assured me __ safety.
(13) Cowper had a passion __ books which increased __ passing years.
(14) He lives close ___ my house.
(15) He has confided the secret __ me but I have no confidence __ him.
(16) More things are wrought __ prayer than this world dreams __ .
(17) Always be prepared ___ the worst.
(18) I cannot easily compete __ a man who is superior __ me ___ intelligence.
(19) I have no respect __ a man who wastes his time, and who shows no regret __ the loss __ opportunities __ doing good.
(20) He gave information __ the hope __ a reward.

Please help me with this question, whoever gives correct answer will be marked as brainliest and will be given 20 points
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Answer 1

Answer:

The ionic character of a bond is dependent on the electronegativities of the atoms involved. The higher the difference between the electronegativities of atoms, the more is the ionic character.

Electronegativity decreases down the group from Beryllium to Barium. Hence, the ionic character of their hydrides increases down the group as the difference becomes more.

Therefore, the order of ionic character is as follows :

BeH

2

<CaH

2

<BaH

2