Methane an air pollutant is produced ___________
(A) by burning of coal in insufficient air
(B) by digestion of food by animals
(C) by action of ultraviolet light on nitrogenous compounds.
(D) as a by-product of manufacturing ammoniacal fertilizers
Who was the inventor of positron?
(A) Chadwick
(B) Anderson
(C) Rutherford
(D) J.J. Thomson
Curie is the unit of:
(A) Heat
(B) Energy
(C) Radioactivity
(D) Temperature
Neutron was discovered -
(A) Chadwick
(B) Newton
(C) Rutherford
(D) Thomson
What is the common name of Sodium Bicarbonate?
(A) Plaster of Paris
(B) Fly Ash
(C) Baking Soda
(D) Washing Powder
Which of the following is/are the example/examples of chemical change?
(1) . Crystallization of sodium chloride
(2) . Melting of ice
(3) . Souring of milk
Select the correct answer using the code given below.
(A) 3 only
(B) 1, 2 and 3
(C) 1 and 2 only
(D) None
What is the more common name for solid carbon dioxide?
(A) Quick Silver
(B) Epsom
(C) Potash
(D) Dry Ice
NaHCO3 is chemical formula for ___________.
(A) Borax
(B) Vinegar
(C) Lime
(D) Baking soda
The common name of dichlorodifluoromethane is _____.
(A) gypsum
(B) borax
(C) galena
(D) Freon
_______ expansion makes the Eiffel Tower taller during summers.
(A) Gravitational
(B) Gradient
(C) Chemical
(D) Thermal
1. Which one of the following non-metals is not a poor conductor of electricity
A. Sulphur
B. Selenium
C. Bromine
D. Phosphorus
2. Which one of the following is not a chemical change?
A. Burning of coal in air
B. Fermentation of sugarcane juice
C. Cracking of petroleum
D. Crystallization of table salt from seawater
3. Which metal remains in liquid form under normal conditions?
A. zinc
B. radium
C. uranium
D. mercury
4. Commercially, sodium bicarbonate is known as
A. Washing soda
B. Baking soda
C. Bleaching powder
D. Soda ash
5. Acetylsalicylic acid is commonly used as
A. A painkiller
B. A sedative
C. Tear gas
D. A fertilizer
6. Which metal is commonly used for making an electromagnet?
A. Copper
B. Cobalt
C. Iron
D. Nickel
7. The gas that is responsible for global warming is
A. Carbon dioxide
B. Oxygen
C. Methane
D. Sulphur dioxide
8. Which of the following is the source of common salt?
A. Bauxite
B. Pyrite
C. Calcite
D. Halite
9. What is the main constituent of coal gas?
A. Oxygen
B. Water
C. Nitrogen
D. Methane
10. For Which one of the following is the density maximum?
A. Chloroform
B. Water
C. Benzene
D. Ice
If you like the post please give a rating, and share it with your friends by clicking the share button and commenting below.
Get the Examsbook Prep App Today