Exercise: Chemistry

Questions for: Chemistry

The hottest part of the gas flame is known as
A:
luminous zone
B:
dark zone
C:
blue zone
D:
non-luminous zone
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The number of electrons presents in H+ is
A:
zero
B:
one
C:
two
D:
three
Answer: A

H+ is a hydrogen ion, and it is an ion because it LOST an electron. Electrons are negatively charged. When an atom gains electrons it will have NEGATIVE charges.

So it has zero electron.

📖
📝
💬
👁️
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of
A:
an addition reaction
B:
a condensation reaction
C:
an oxidation reaction
D:
an elimination reaction
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The most important ore of aluminium is
A:
bauxite
B:
magnetite
C:
haematite
D:
monazite
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The hardest form of carbon is
A:
coke
B:
graphite
C:
diamond
D:
charcoal
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz