List of practice Questions

Identify the hardest substance in the body.
\(2HCl + Zn\rightarrow\)
Methyl orange shows _____ colour in acidic solution.
Which of the following is not correct?
Quantum numbers of a subshell are n = 2 and l = 1. Identify the subshell.
l values of subshells d, s, f, p are respectively
In visible light, red colour possesses
Identify the degenerated orbitals
Elements having 5, 6, 7 valency electrons are
Electronic configurations of Mg+2 ion and Cl– ion are
Coordination number of Na+ in NaCl crystal is
Bonds present in Nitrogen molecule are
\(1s^2, 2s^2, 2p^6, 3s^2, 3p^6\) configuration is related to
The number of electrons gained by non-metal element is equal to its
Corrosion of copper produces
22-carat Gold contains
Formula of Rust is
Chemical used to remove impurities from ore is called
By moving top to bottom in group, valency will
Atomic number of the element of VA group, coming after nitrogen is
Identify the element that belongs to 2nd group and 3rd period.
Identify the correct statement.
VIA group elements are called
Identify the structure of propyne
functional group indicatesfunctional group indicates