The number of isomeric ethers with molecular formula $C_4H_{10}O$ is:

From the following,identify the reactions that give alcohol as the product.
$(i)$ $Cyclohexylidenemethane \xrightarrow[(ii) H_2O_2/NaOH]{(i) B_2H_6}$
(ii) $Methyl \ benzoate \xrightarrow{H_2/Catalyst}$
(iii) $Acetophenone \xrightarrow{NaBH_4/MeOH}$
(iv) $2,2-Dichloropropane \xrightarrow{H_2O/NaOH}$

How many metameric ethers are represented by the molecular formula $C_4H_{10}O$?

What is the major organic product of the following reaction?
(Image of $2-$methyl$-2,3-$dihydrobenzofuran with an $^{18}O$ atom in the ring,reacting with $H_3O^+$)

Which of the following is an isomer of diethyl ether $(C_4H_{10}O)$?

The structure of the product formed in the reaction given below is: