Important Chemistry Quiz for competitive exams

You you will find the Important Chemistry quiz. It will help you to crack NDA, CAT, GATE, Railways, UPSC, Bank PO Etc.

The chemicals that produce positively charged hydrogen ions (H+) or a proton in solutions are

Correct
Incorrect

An ________ is a kind of chemical compound which can neutralize acids.

Correct
Incorrect

The smallest unit of matter that can take part in a chemical reaction, and which cannot be broken down chemically into anything simpler is

Correct
Incorrect

______ is a chemical element, a grey metal which has very high melting point

Correct
Incorrect

________ is a group of specific proteins produced by mammals to defend themselves from foreign organisms or chemicals

Correct
Incorrect

______ is a chemical that can prevent blood from clothing for example heparin

Correct
Incorrect

The treatment of diseases by the administration of chemicals is

Correct
Incorrect

Any agent that increases the change of a cell becoming cancerous, including various chemicals, some viruses, X-rays and forms of nuclea radiation is

Correct
Incorrect

A chemical which is used to kill or control living organism is

Correct
Incorrect

Phylloquenone is the chemical name of-

Correct
Incorrect

Chemical name of Plaster of Paris is-

Correct
Incorrect

The treatment of diseases by the administration of chemicals is...

Correct
Incorrect

In food technology, any natural or artificial chemical added to prolong the shelf life of processed foods (salt or nitrates), alter the colour or flavour of food, or improve its food value (vitamins or minerals) is called..

Correct
Incorrect

A chemical sprayed on plants that causes leaves to fall off prematurely is called..

Correct
Incorrect

A biological catalyst produced in cells and capable of speeding up the chemical reactions necessary for life by converting one molecule (substrate) into another is

Correct
Incorrect

Any agent that increases the chance of a cell becoming cancerous, including various chemicals, some viruses, X-rays and forms of nuclear radiation is

Correct
Incorrect

__________ are complex protein molecules produced by all plants and animals. These are catalysts which initiate, accelerate or, as negative catalysts, retard biochemical reactions without them- selves changing.

Correct
Incorrect

_________ is an organ which secretes specific chemical compounds such as enzymes or hormones.

Correct
Incorrect

A chemical messenger produced by endocrine glands in animals and secreted directly into the bloodstream is

Correct
Incorrect

What is the chemical basis of heredity ?

Correct
Incorrect

The undesirable change in physical, chemical or biological characteristics of our soil, air or water is called:

Correct
Incorrect

A chemical that is used to kill a pest organism is known as:

Correct
Incorrect

A biochemical process in which food is oxidised to release energy is called:

Correct
Incorrect

 

0.00 avg. rating (0% score) - 0 votes

No Comments

Leave a Reply

Your email address will not be published.