Question Detail

How many different oxides are formed by nitrogen ?

two
three
four
five

Answer: Option A

Similar Questions :

1. Why is phosphorus kept under water ?

to make it wet
to make it durable
water forms a protective coating on it
to save it from catching fire when exposed to dry air

Answer: Option D

2. What is metallurgy ?

process of extracting metal in pure form from its ore.
process of creating alloys of metals.
process of making metals live long.
None of above.

Answer: Option A

3. The high reactivity of fluorine is due to ?

small size of fluorine atom
its high electro negativity
availability of d-orbitals
strong F - F bond

Answer: Option B

4. Identify the wrong statement in the following

Atomic radius of the elements increases as one moves down the first group of the periodic table
Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the
Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

Answer: Option C

5. Biogas majorly contains ?

Ethane
Methane
Hydrogen
CO

Answer: Option B

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