List of top Chemistry Questions asked in CET Delhi Polytechnic

Select from the following a set of three metals which are found in free state :
The gas which may cause explosion in coal mines is :
Which of the following is the most electronegative element in the periodic table ?
A gel toothpaste is a mixture of a :
During summer, water kept in an earthern pot becomes cool because of the phenomenon of :
The Chemical symbol for tin is :
The compound that can be purified by sublimation is :
An ant sting contains :
Aquaregia contains 3 parts of concentrated HCl and ____.
When Magnesium (Mg) burn in air, we get Magnesium ____ .
Bleaching powder is obtained by passing chlorine over :
How many electrons, protons and neutrons are present in Y\(^+\), if atomic number of Y is 19 and mass number of Y is 39 :
Which among the following is the lightest particle :
An element with atomic number 20 will be placed in which period of the periodic table :
The Autotrophic mode of nutrition requires :
Alveoli and villi both increases :
Which of the following does not contain a carboxyl group : \(-COOH\)
Correct formula of sodium peroxide is :
The most electronegative element in the periodic table is :
In the periodic table the position of the element still uncertain is of :
Glucose is broken down to 3-carbon compound called :
Gold mines are located in India at :
Isotopes of an element have the same :
Symbol of silver is :
Which of the following is used to make non-stick cookware :