GK questions 8th grade

In which year was nylon made?

Thermocol is produced from?

Who is credited with the invention of plastic?

• a) Thomas Edison

• b) Alexander Graham Bell

• c) Leo Baekeland

• d) Charles Goodyear

5. Which of the following is NOT a characteristic of glass?

• a) Transparency

• b) Heat resistance

• c) Flexibility

• d) Chemical resistance

What is the type of plastic that can be molded as per our wish?

• a) Thermosetting plastic

• b) Biodegradable plastic

• c) Thermoplastic

• d) Composite plastic

Another name of the ionic bond is

• a) Electrovalent bond

• b) Covalent bond

• c) Metallic bond

• d) Hydrogen bond

What's the chemical formula for glucose?

• 6C6H12O6

• C12H6O12

• C6H12O6

• CHO

Tags

NGSS.HS-LS1-6

Who discovered chemical symbols?

• a) J.J. Berzelius

• b) Antoine Lavoisier

• c) John Dalton

• d) Dmitri Mendeleev

Which branch of chemistry focuses on compounds containing carbon

• a) Inorganic chemistry

• b) Organic Chemistry

• c) Physical Chemistry

• d) Analytical Chemistry

Who introduced the term "covalent bond"?