Which of the following is the most abundant metal on Earth's crust?
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Rayon is obtained from which among thefollowing?
Which of the following are the smaller planets than the size of the Earth?
The Ozone layer is present in which atmospheric layer?
Which among the following is not a characteristic of oxidation reaction?
The amount of BaSO4 formed on mixing an aqueous solution of 2.08 gm of BaCl2 and excess of dilute H2SO4 is ___.
(atomic weights : Ba = 137, Cl = 35.5, S = 32, O = 16)
_________________ is a drug that makes your heart work more slowly, used for treating high blood pressure.
Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?