3 years ago

Which of the following is not a best practice for soil conservation?

1 answer:

5 0

The appropriate answer is d. Bioresurfacing by increasing land and agriculture usage. Expansion of agricultural practices means more tillage of the soil. Increasing tillage increases the risk of soil erosion and is therefore not a suitable conservation method. mulching reduces the negative impact of rain showers and helps to retain soil moisture.
Mechanical methods use man made structures to conserve the soil while crop management is a biological method of soil conservation.

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CH3CH2PH2 can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this c

Maru [420]

Answer:

The PH2 becomes attached to the alkyl halide with inversion of configuration

Explanation:

SN2 reaction involves the simultaneous attachment of the nucleophile as the leaving group departs. This leads to an inversion of configuration because the sterochemistry around the carbon bearing the leaving group is reversed. The reaction proceed via a crowded five coordinate transition state. Details are shown in the image attached.