Which amongst the following is not a cation?
Sulphate ion
Cations are positively charged ions (formed by loss of electrons); anions are negatively charged (formed by gain of electrons).
Aluminium ion \(\text{Al}^{3+}\), Copper ion \(\text{Cu}^{2+}\) and Zinc ion \(\text{Zn}^{2+}\) are all positively charged metal cations. The Sulphate ion \(\text{SO}_4^{2-}\) carries a \(-2\) charge, making it an anion, not a cation.
Fire extinguishers emit which gas?
In the following reaction, fill in the blank.
Acid + Base → _______ + Water
Which of the following is a characteristic of an exothermic reaction?
Ozone is an ______ of oxygen.
What is the common characteristic of the elements of the same group in the periodic table?
Which of the following bonds are weakest in nature?
What is the chemical name of saltpetre?
The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.
What is the bond angle (in degrees) in the structure of a benzene molecule?
Fire extinguishers emit which gas?