Options:
- A. Zn + Ni
- B. Cu + Zn
- C. Cu + Ni
- D. Cu + Sn
View Answer
C. Cu + Ni
Everyday Science
How many bones are there in an adult human being?
Options:
- A. 210
- B. 260
- C. 206
- D. 300
View Answer
C. 206
Which of the following diseases is caused by virus?
Options:
- A. Small pox
- B. Tuberculosis
- C. Malaria
- D. Cholera
View Answer
A. Small pox
An iceberg is floating in sea. How much of its mass will remain above the surface of water?
Options:
- A. One tenth
- B. One fifth
- C. One fourth
- D. One third
View Answer
A. One tenth
Detergents dissolved in water help in cleaning clothes by_________?
Options:
- A. Increasing the temperature of water
- B. Reacting chemically with dirt
- C. Reducing the surface tension of water
- D. Dissolving dirt
View Answer
C. Reducing the surface tension of water
A camera uses a __________ to form an image.
Options:
- A. convex lens
- B. concave lens
- C. condenser lens
- D. none of these
View Answer
A. convex lens
Oxidation is a chemical reaction involving the __________?
Options:
- A. Gain of Electrons
- B. Loss of Electrons
- C. Gain of Protons
- D. Loss of Protons
View Answer
B. Loss of Electrons
For proper formation of teeth, __________ is essential?
Options:
- A. iodine
- B. copper
- C. fluorine
- D. iron
View Answer
C. fluorine
Water covers __________ of the Earth
Options:
- A. 61%
- B. 67%
- C. 71%
- D. 76%
View Answer
C. 71%
Radioactive isotope of Uranium used in Nuclear Bomb is ?
Options:
- A.92 U 235
- B.92 U 234
- C. 92 U 233
- D. 92 U 238
View Answer
A.92 U 235