Which of the following is not an Igneous Rock?
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The element with the highest electron affinity among halogens is
Which of the following constitutes highest percentage of Green House gases?
Which among the following is used to generate light, to weld metals?
The depletion in Ozone layer is caused by ___________ .
What is the number of atoms in 46 g of sodium-23 (N = Avogadro constant)?
___ is amphoteric in nature.
Which of the following is not a Halon gas ?
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