Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Which among the following substances is being used most commonly for producing synthetic jet Fuel?
a. Coal
b. Natural Gas
c. Plastic Waste
d. Biomass
Q. A baby diaper, if tested with various solutions, will absorb maximum amount of which among the following:
a. Distill Water
b. Drinking water
c. Hard water
d. Urine
Q. Now a days, a little pack of Silica Gel (granular beads of Silica made from Sodium Silicate) comes with many products to control humidity and avoid spoilage or degradation of some goods. Which among the following property of Silica gel makes it useful for that purpose?
a. Silica gel molecules are hydrophilic with large surface area and so its molecules trap the moisture
b. Silica gel is a Hygroscopic substance with large surface area so its molecules absorb the moisture.
c. Silica gel molecules are with a portion that is charge-polarized and capable of hydrogen bonding, thus bonds with the water molecules
d. The semi permeable pouch in which silica gel is placed absorbs the moisture which later reacts with water.
Q. Which among the following is the correct almost equivalent to 1 MMBTU Natural Gas ?
a. 1.054615 gigajoule
b. 0.1054615 gigajoul
c. 10.54615 gigajoule
d. 105.4615 gigajoule
Q. 054615 gigajoule]24. Consider the following statements:1. The space between the valence and conduction bands is zero in Graphene2. This property of Graphene makes it an excellent transistor of commercial viabilityWhich among the above statements is/ are correct?
a. Only 1
b. Only 2
c. Both 1 & 2
d. Neither 1 nor 2
Q. Pyrolusite, Braunite, Psilomelane and Rhodochrosite are the ores of which among the following:1. Manganese2. Aluminium3. CopperChoose the correct option:
a. Only 1
b. Only 1 & 2
c. Only 3
d. Only 1 & 3
Q. Consider the following statements:1. Copernicium is at present highest-numbered element recognized by IUPAC2. Copernicum has been synthesized in the lab by a nuclear reaction of Zinc and Lead IsotopesWhich among the above statements is / are correct?
a. Only 1 is correct
b. Only 2 is correct
c. Both 1 & 2 are correct
d. Neither 1 nor 2 are correct
Q. What is "milk of magnesia" chemically?
a. Magnesium carbonate
b. Sodium bicarbonate
c. Calcium hydroxide
d. Magnesium hydroxide
Q. The acid used in lead storage cells is –
a. phosphoric acid
b. hydrochloric acid
c. nitric acid
d. sulphuric acid
Q. Milk tastes sour when kept in the open for sometime due to the formation of –
a. lactic acid
b. citric acid
c. acetic acid
d. carbonic acid
Q. Which of the following is a natural dye?
a. Crystal violet
b. Aniline blue
c. Alizarin
d. Phenolphthalein
Q. is the process in which acids and bases react to form salts and water.
a. Neutralization
b. Electrolysis
c. Distillation
d. Hydrolysis
Q. The gas usually causing explosions in coal mines is –
a. Hydrogen
b. Carbon monoxide
c. Air
d. Methane