Chemistry Questions

Q:

The process that takes place in the atom bomb is

A) nuclear fusion B) nuclear fission
C) radioactive disintegration D) chemical decomposition
 
Answer & Explanation Answer: B) nuclear fission

Explanation:

In the atom bomb, isotopes of uranium are  disintegrated with the release of a large amount of energy. Hence, the process is nuclear fission.

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1 3531
Q:

What type of compound is Lecithin?

A) Sterol B) Phospholipid
C) Lipoprotein D) Glycolipid
 
Answer & Explanation Answer: B) Phospholipid

Explanation:

Lecithin is a Phospholipid type of compounds. The main phospholipids in lecithin from soya and sunflower are phosphatidyl choline, phosphatidyl inositol, phosphatidyl ethanolamine, and phosphatidic acid.

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Q:

Tertiary structure is NOT directly dependent on

A) hydrogen bonds B) ionic bonds
C) peptide bonds D) hydrophobic interactions
 
Answer & Explanation Answer: C) peptide bonds

Explanation:
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0 3513
Q:

In the making of jewels, gold is usually mixed with 

A) zinc B) tin
C) copper D) aluminium
 
Answer & Explanation Answer: C) copper

Explanation:

In making jewels, gold is usually mixed with copper to make it little hard.

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Q:

ATP generally energizes a cellular process by

A) direct chemical transfer of a phosphate group B) becoming oxidized
C) releasing heat upon hydrolysis D) direct chemical transfer of a sugar group
 
Answer & Explanation Answer: A) direct chemical transfer of a phosphate group

Explanation:

ATP generally energizes a cellular process by direct chemical transfer of a phosphate group.

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2 3488
Q:

What is a product in a chemical reaction?

Answer

In chemistry, a product is a substance that is formed as the result of a chemical reaction. In a reaction, starting materials called reactants and the ending materials are called products.

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0 3487
Q:

What element is found in all organic compounds?

A) Hydrogen B) Calcium
C) Nitrogen D) Carbon
 
Answer & Explanation Answer: D) Carbon

Explanation:

Carbon is found in all organic compounds.

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0 3475
Q:

What is the name for the compound P4O10?

A) Phospholipid B) Phosphoric acid
C) Phosphorus pentoxide D) Phosphorus decoxide
 
Answer & Explanation Answer: C) Phosphorus pentoxide

Explanation:

The compound with the molecular formula P4O10 is called Phosphorus pentoxide or tetraphosphorous decoxide. It is an anhydride of the Phosphoric acid.

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