A. Zn + Ni
B. Cu + Zn
C. Cu + Ni
D. Cu + Sn
E. None of these
Show AnswerAnswer= Option C
Chemistry
Bronze is an alloy of ____________?
A. Copper and Zinc
B. Tin and Zinc
C. Copper and Tin
D. Iron and Zinc
E. None of these
Show AnswerAnswer= Option C
Laughing gas has chemical composition of following two elements ?
A. Nitrogen + Hydrogen
B. Nitrogen + Carbon
C. Nitrogen + Oxygen
D. Oxygen + Carbon
E. None of these
Show AnswerAnswer= Option C
Copper can be converted into gold by ?
A. Artificial radioactivity
B. heating
C. Electroplating
D. Chemical reaction
Show AnswerAnswer= Option A
Max Planck received the noble prize in Physics in 1918 for his discovery of ?
A. electron
B. energy quanta
C. photon
D. positron
Show AnswerAnswer= Option B
Bronze medal is made up of metals ?
A. copper,nickel
B. copper, tin
C. copper, silver
D. copper, zinc
Show AnswerAnswer= Option B
Radioactive isotope of Uranium used in Nuclear Bomb is ?
A.92 U 235
B.92 U 234
C. 92 U 233
D. 92 U 238
Show AnswerAnswer= Option A
The gas, commonly known as “laughing gas”, is
A. Carbon Dioxide
B. Sulfur Dioxide
C. Nitrous Oxide
D. Sodium Oxide
Show AnswerAnswer= Option C
The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.
A. 1 gram
B. 10 grams
C. 1 kg
D. 10 kg
Show AnswerAnswer= Option C
The position of an element in the Periodic Table is determined by its __________ number?
A. Electron
B. Proton
C. Neutron
D. Positron
Show AnswerAnswer= Option B