Neon is an element because it is a pure atom
Answer: 46. E 47. D 48. C 49. A
50. A 51. D 52. B 53. B 54. C
Explanation: solution attached.
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Fertilizer use the run on can go into fresh water
In this reaction
ester is reduced to
aldehyde. Such reduction can not be achieved by reacting reducing agents like
LiAlH₄ because it will further reduce aldehydes to alcohols. So, in order to stop reduction at alddehyde, ester is reacted with bulky reducing agent, <span>
Diisobutylaluminium hydride (DIBAL) which works with same mechanism as that LiAlH</span>₄ do. It also add hydride to carbonyl group. The reaction is shown below,