Top 1000+ Solved Chemistry MCQ Questions Answer
Q. A bee-sting leaves an acid which causes pain and irritation.
a. The injected acid is -
b. acetic acid
c. sulphuric acid
d. citric acid
Q. Earth's atmosphere is an envelope of gases extending to a height of –
a. 100 km
b. 150 km
c. 200 km
d. 300 km
Q. In its reaction with silver nitrate, C2H2 shows –
a. Oxidising property
b. Reducing property
c. Basic property
d. Acidic property
Q. Which of the following imparts a blue colour to glass?
a. Cobalt oxide
b. Copper oxide
c. Iron oxide
d. Nickel oxide
Q. Of the following, which one pol-lutes the air of a big City?
a. Copper
b. Chromium
c. Lead
d. Cadmium
Q. Which one of the following petroleum refinery products has the lowest boiling point?
a. Kerosene
b. Gasoline
c. Diesel
d. Lubricating oil
Q. Which of the following is used for removing air bubbles from glass during its manufacture?
a. Fledspar
b. Arsenic oxide
c. Potassium Carbonate
d. Soda Ash
Q. The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:
a. Amino phenyl alanine
b. Hydroxy phenyl alanine
c. Phenyl alanine
d. Dihydroxy phenyl alanine
Q. Thissubstance is commonly used in the kitchen for making tasty crispy pakoras and is sometimes added for faster cooking. Which of the following is it?
a. Baking soda
b. Bleaching powder
c. Vinegar
d. Artificial sweeteners
Q. Ferrous sulphate is used in water treatment as a/an -
a. Oxidizing agent
b. Reducing agent
c. Coagulant aid
d. Adsorbent