Question
Explain the electrophilic substitution reaction of benzaldehyde with suitable example.

Answer

→ Electrophilic substitution reaction: Aromatic aldehydes and ketones undergo electrophilic substitution at the ring in which the carbonyl group acts as a deactivating and meta-directing group.
Image

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Explain the following giving an appropriate reason in each case.
  1. $O_2$ and $F_2$ both stabilise higher oxidation states of metals but $O_2$ exceeds $F_2$ in doing so.
  2. Structures of Xenon fluorides cannot be explained by Valence Bond approach.
What are LDPE and HDPE? How are they prepared?
In what way is the electronic configuration of the transition elements different from that of the non transition elements?
What is meant by the Ketal? Give an example.
An organic compound $‘X’$ having molecular formula $C_4H_8O$ gives orange-red ppt. with $2, 4-DNP$ reagent. It does not reduce Tollens’ reagent but gives yellow ppt. of iodoform on heating with $NaOI.$ Compound $X$ on reduction with $LiAlH_4$ gives compound $‘Y’$ which undergoes dehydration reaction on heating with conc. $H_2SO_4$ to form But-2-ene. Identify the compounds $X$ and $Y.$
Explanation of ionization isomerism with example.
How will you bring about the following conversion?
Ethane to bromoethene.
What is the effect of temperature on the rate constant of a reaction? How can this temperature effect on rate constant be represented quantitatively?
Write down the reactions taking place in Blast furnace related to the metallurgy of iron in the temperature range 500-800K.

Following type of non-ionic detergents are present in liquid detergents, emulsifying agents and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group(s) present in the molecule.

(X= 5 to 10 )