AIEEE Questions

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United States and Russia have together almost 400 billion tones. Which represents nearly 50% of world's reserves of coal.

A mountain is what has roots that nobody sees, Is taller than trees, Up, up it goes, Yet it never grows.

Br-Br.

In Br2, two of the same atoms, pull on each side of the bond is equal making it as non-polar.

The other options all include a significantly more electronegative atom (the oxygens and the chlorine), so those bonds are all polar covalent.

In DNA, adenine pairs with Thymine. Similarly, in RNA, due to absence of thymine in RNA and the same structure with uracil helps to pair with adenine.