GATE Questions

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An ionic bond is formed in between the two atoms with the transfer of electrons from an atom to the other to become stable after pairing.

The atom which has low ionization energy will give some of its electrons to get stable electronic configuration .

Gene is a segment of chromosomal DNA or a sequence of DNA or RNA that codes for a molecule that has a function. It is the basic physical and functional unit of heredity.

As genes are made up of DNA it impies that they are long, double chains of nucleic acids as DNA is made of nucleic acids.

Let speed of slower train = 2x
⇒ speed of faster train = 5x
ATQ, (150 + 200)/(2x + 5x) = 15
x = 10/3
Time required=350/[50/3–20/3]= 35 seconds

The Pacific Ocean is the largest and deepest of Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean in the south. We know that, Earth is made up of 70% of water and 30% of land. Pacific Ocean covers 1/3rd of the water on the Planet Earth.

DOZENS.

If we remove 'S' from it, it is DOZEN which tells that 12.

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases.

Earth's atmosphere is composed of many gases. Their percentages by volume is given by::

 
78% Nitrogen,

21% Oxygen,

0.9% Argon, and

0.03% Carbon dioxide 

And very small percentages of other elements.