Which gas is emitted by adding dilute sulfuric acid to granulated zinc?
(A) Hydrogen gas
(B) Sulfur Dioxide
(C) Oxygen gas
(D) No gas
Zinc and lead, than copper?
(A) is less active
(B) is more active
(C) is equally functional
(D) Others
Which nature's flame is emitted when a ribbon of magnesium is combusted?
(A) red and bright
(B) Blue shiny
(C) White luminous
(D) bright green
Which of the following is a heterogeneous compound?
(A) Plaster of Paris
(B) Chalk
(C) Marble
(D) Limestone
What is the substance of tooth gum which is very hard?
(A) Copper chloride
(B) calcium phosphate
(C) calcium carbide
(D) calcium carbonate
With which substance is it beneficial to treat a bee sting?
(A) Baking Soda
(B) sodium carbonate
(C) sodium chloride
(D) Others
Get the Examsbook Prep App Today