Bronze medal is made up of metals ?
Bronze medal is made up of metals ?
A. copper,nickel
B. copper, tin
C. copper, silver
D. copper, zinc
A. copper,nickel
B. copper, tin
C. copper, silver
D. copper, zinc
A. 632
B. 639
C. 642
D. None of these
Who developed the telegraph code?
A. Andre Ampere
B. Samuel Morse
C. Joseph Henry
D. Jean Fourier
A. 3%
B. 33%
C. 0.3%
D. 0.03%
One of the following ways of expressing the concentration of a solution does not depend on temperature. It is__________?
A. Molarity
B. Molality
C. Normality
D. Formality
Which Gas is used in the preparation of Soft drinks?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Halogen
A. 100
B. 400
C. 1000
D. 4000