Related MCQs

• Q. Fill in the blank: ………….. can be retarded by storing foods away from light.
• Q. An aqueous solution turns red litmus solution blue. Excess addition of which of the following soluti
• Q. In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of th
• Q. Which of the following is an iron ore?
• Q. Metal have ……………. melting and boiling points.
• Q. Graphite is used as a lubricant in machines because
• Q. 2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl and concentrated HNO3 in the r
• Q. A gas used for artificial ripening of fruits.
• Q. The following reaction is an example of a 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) (i) displacement r
• Q. The elements of group 16 are called