Question

Which of the following pairs are correctly matched?

Reactants	Products
I. RX + AgOH(aq)	RH
II. RX + AgCN(alco)	RCN
III. RX + KCN(alco)	RNC
IV. RX + Na(ether)	R-R

A I alone
B I and II
C II and III
D II and IV

Answer 1

Hint: Chemical reaction, the transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.

Complete Step by Step Solution:
Alkyl halides are chemical compounds that are frequently generated from alkanes that contain one or more halogens. They are also known as haloalkanes or halogenoalkanes. Alkyl halides are also a part of the larger category of halocarbons.

Halogen atoms are substituted for hydrogen atoms in an aliphatic hydrocarbon to produce alkyl halides, also known as haloalkanes (Fluorine, chlorine, bromine or iodine). They can also be produced from any organic precursors, including alcohols, carboxylic acids, alkanes, and alkenes. Alkyl halides often have hydrogen atoms bonded to the alkyl group's $s{{p}^{3}}$ hybridised carbon atom.

A nucleophile combines with a haloalkane in this sort of reaction, which has a partial positive charge on the carbon atom that is bound to the halogen. Following a substitution reaction, the leaving group halogen atom departs as a halide ion. The substitution reaction is known as a nucleophilic substitution reaction since the nucleophile is the one who starts it.
$ RX+AgOH(aq)\to R-OH+AgX \\ $
$RX+AgCN(aq)\to AgX+RNC \\ $
$RX+KCN(alcoholic)\to KX+RCN \\ $
$ RX+Na\xrightarrow{ether}R-R \\ $

Hence option d is correct

Note: When certain metals are combined with the majority of organic chlorides, bromides, and iodides, compounds with carbon-metal bonds are produced. These substances are referred to as organometallic substances. the end result of magnesium metal and haloalkanes reacting in dry ether. The creation of hydrocarbons is caused by the active nature of Grignard reagents, which can react with any source of protons. Grignard reagents must be avoided as a result. This will be regarded as one of the adjustments to hydrocarbons if not.