List of top Questions asked in AP ECET Chemical Engg- 2025

Commercially ethylene is produced from naphtha by

Hydrophilic group of a soap or detergent solution is

Unsaturated fatty acid is

The end bleaching agent used to remove last traces of colour bodies from the pulp is

Carborundum mainly consists of

Cooking liquor in case of sulphite process is

Poly tetra fluoro ethylene is known as

Ultimate analysis of coal determines

Which of the following coal has the highest calorific value?

The catalyst used in shift converter is

Rancidity of the oils can be reduced by

Air at a temperature of \(20^\circ C\) and \(750\text{ mm Hg}\) pressure has a relative humidity of \(80\%\). What is its percentage humidity? Vapor pressure of water at \(20^\circ C\) is \(17.5\text{ mm Hg}\)

A solution of specific gravity \(1\) consists of \(35\%\) A by weight and the remaining B. If the specific gravity of A is \(0.7\), the specific gravity of B is

Assuming that carbon dioxide obeys ideal gas law, the density of carbon dioxide \((\text{Kg/m}^3)\) at \(263^\circ C\) and \(2\) atm is

Pure oxygen is mixed with air to produce an enriched air containing \(50\) volume \(\%\) of oxygen. The ratio of moles of air to oxygen used is

Which of the following terms of Vander Waals equation of state for a non-ideal gas accounts for intermolecular attraction forces?

\(500\text{ C.C}\) each of hydrogen at \(700\text{ mm Hg}\) pressure and oxygen at \(600\text{ mm Hg}\) pressure are put together in a vessel of \(1\) litre capacity. The final pressure of the gas mixture will be _ _ _ _ mm Hg

Weight of \(56\) litres of chlorine gas at S.T.P. is _ _ _ _ g

The density of a gas \(X\) is twice that of another gas \(Y\). If the molecular weight of gas \(Y\) is \(M\), then the molecular weight of the gas \(X\) will be

The main reducing agent in iron blast furnace is

Eutectic reaction for iron-carbon system occurs at

A suitable material of construction to use with fuming sulphuric acid is

Glass reacts with

A bypass stream in a chemical process is useful to

Ball bearings are made of