List of top Questions asked in Andhra Pradesh Polytechnic Common Entrance Test

Aliphatic hydrocarbons are
Saturated hydrocarbons contain
Replacing one hydrogen from NH3, by alkyl group will result in the formation of
Corrosion of silver results in the formation of
During corrosion, a metal will
Ethene and ethyne differ in the
What is the structural formula of simplest ketone?
Identify the dimethyl ether.
The number of electrons gained by non-metallic element is equal to its
Poling process is used to
Reactivity increasing order of the following metals will be
Linus Pauling proposed the concept of
Electronic configuration of O-2 ion is
Identify the correct statement.
Lithium, sodium and ____ are Dobereiner's triads.
Strong ionic bond is formed between ____ and ____ group elements.
An element ‘X’ belongs to 2nd group and 3rd period. What is its valency?
Valance Bond Theory was proposed by
Presence of 3 unpaired electrons in nitrogen can be explained by ____ principle.
IV A group elements are called
1s2, 2s2, 2p6, 3s2, 3p6 (2,8,8) configuration is related to
If pH of rain water is less than ____ ,then it is called acid rain.
Niels Bohr received Nobel Prize in
What do you observe on pouring potassium hydroxide on red and blue litmus papers?
Tooth enamel is made up of