List of top Chemistry Questions asked in AP POLYCET

Which of the following orbitals does not exist?
What do you observe on pouring potassium hydroxide on red and blue litmus papers?
If pH of rain water is less than ____ ,then it is called acid rain.
Niels Bohr received Nobel Prize in
Which one of the following can be used as acid-base indicator to detect acidic or basic nature of solution?
Which of the following is not correct?
Ethyl alcohol upon oxidation produces
Methyl orange shows _____ colour in acidic solution.
VIA group elements are called
Ethene and ethyne differ in
Corrosion of copper produces
Identify the degenerated orbitals
\(1s^2, 2s^2, 2p^6, 3s^2, 3p^6\) configuration is related to
Elements having 5, 6, 7 valency electrons are
Chemical used to remove impurities from ore is called
Formula of Rust is
Electronic configurations of Mg+2 ion and Cl– ion are
Coordination number of Na+ in NaCl crystal is
The number of electrons gained by non-metal element is equal to its
Identify the element that belongs to 2nd group and 3rd period.
functional group indicatesfunctional group indicates
Identify the hardest substance in the body.
Identify the correct statement.
Quantum numbers of a subshell are n = 2 and l = 1. Identify the subshell.
\(CH_3 COOH\) solution turns red litmus into