106) Which of the following has highest mass
A) One molecule H2O
B) One gram H2O
C) One ml H2O
D) One mole H2O
107) When the equation, Na + H2O → NaOH + H2 is balanced. What is the coefficient for ‘Na’
A) 2
B) 3
C) 4
D) 1
108) The chemical reaction in which heat is absorbed is called
A) Oxidation reaction
B) Exothermic reaction
C) Endothermic reaction
D) Reduction reaction
109) Which of the following is not an inert gas element
A) He
B) Na
C) Ne
D) AR
110) How many s-block and p-block elements are there in the second period of the modern periodic table
A) 2, 8
B) 8, 2
C) 2, 6
D) 4, 8