NEB Question Browser

An aliphatic compound (A) reacts with SOCI to give (B). The compound (B) is heated with ammonia to produce (C). The compound (C) is further heated with Br /KOH to yield (D). The compound (D) gives (E) when treated with NaNO /HCI at low temperature. The compound (E) is a primary alcohol which gives positive iodoform test. Identify compounds (A) to (E) with the reactions involved.

To estimate the chloride ion present in tap water, volumetric analysis has been commonly used in the laboratory. Which of the following solutions can be used for the above mentioned titration?

Ethanol to chloroform

Phenol into DDT

Which of the following compounds gives a positive carbylamine reaction?

Define instantaneous rate of reaction. Write down the rate expressions of the following reaction.

2N₂O₅(g) → 4NO₂(g) + O₂(g)

If 2.24 litres of O₂ at NTP is produced in 30 minutes, what is the rate of disappearance of N₂O₅(g)?

Ethoxyethane into methoxymethane

Predict the product when compound (A) is heated with sodium methoxide.

Convert compound (B) into propene.

Starting from compound (A), how would you obtain 2,3-dimethylbutane?

Give a reaction for the preparation of corrosive sublimate.

Calculate the standard emf of the cell.

Write the complete cell reaction.

Fibrous and non-fibrous raw materials for paper production.

Draw a blast furnace for the smelting process during the extraction of (M) using its chief ore.

Nuclear reactions and chemical reactions.

Give the structural formula of monomer and a use of each of the following:

i) Nylon 6,6
ii) Polystyrene

What is Portland cement? List out the major constituents of Portland cement.

How would you convert compound ‘E’ into methanal?

What product will be formed if compound B is treated with ethanol?