Free radicals are electrically
A. positively charged
B. negatively charged
C. neutral
D. all of above
Related Questions on Chapter 3: Fundamentals of Chemistry Mcqs for High School - Grade 9
A mixture that consists of different components is called
A. homogeneous mixture
B. heterogeneous mixture
C. mixture
D. dilute solution
Hair contains keratin proteins which are also present in nails and wool is an example of
A. Biochemistry
B. Inorganic chemistry
C. Physical chemistry
D. organic chemistry
The natural force that holds together elements together is called
A. chemical bond
B. force of attraction
C. gravitational force
D. physical bond
If 9.05 moles of ozone is formed in a storm then the mass of ozone is
A. 435g
B. 450g
C. 434.4g
D. 480g