Among the following, carbonate ore of Zinc is
A). Zinc blende
B). Sphalerite
C). Sphalerite
D). Zincite
Calamine
Among the following, carbonate ore of Zinc is Calamine.
1. Ultraviolet radiation striking this earth is due to the depletion of
2. What is used to prevent freezing of fuel in space carfts?
3. Atomic number of which of the following elements is greater than that of Aluminium?
4. Which among the following will be a negative ion?
5. Which one of the following is a major greenhouse gas?
7. Question 5.27:Comment on the statement that “colloid is not a substance but a state of substance”.
8. 'Acid rain' is caused due to air pollution by
9. What is the element required for solar energy conversion ?