SSC CGL 2022 PYQ — Question 37

The correct answer is option 1 i.e. Cyanide ion - CN–

• Cyanide is a pseudohalide anion that is the conjugate base of hydrogen cyanide.
• Cyanide ion is a chemical compound made up of one Carbon atom and one nitrogen atom with the chemical formula of CN-. 
• It occurs in the form of white powder or crystals in its aqueous form, Cyanide smells like bitter almonds.