Which of the following is an anion
a) a negatively charged chloride atom (Cl-)
b) a positively charged hydrogen atom (H+)
c) a negatively charged electron orbiting around the nucleus of an atom
d) a positively charged proton in the nucleus of an atom - ANSWER a) a negatively
charged chloride atom (Cl-)
If the PH of a solution is between 1&3 the solution is a strong
a)strong acid
b)strong alkali
c)weak acid
d)weak alkali - ANSWER Strong acid
Sublimation is the change of matter from
a)a gas to a solid
b)a liquid to a solid
c)a liquid to a gas
d)a solid to a gas - ANSWER A solid to a gas
Which one of the following belongs to the science of chemistry
a)the alteration of the structure of molecules
b)the condensation of vapour
c)the conduction of electricity along a wire
1
,d)the production of rays in the environment - ANSWER The alteration of the structure of
molecules
An atom is electrically neutral because it has
a)more protons than an electrons
b)more electrons than protons
c)has the same number of protons
d)has the same number of protons &electrons - ANSWER Has the same number of pro-
tons &electrons
A substance which chemically cannot be broken down in to simpler substances is called
a)a compound
b)an element
c)a mixture
d)an emulsion - ANSWER An element
Which one of the following chemicals consists mainly of hydrocarbon
a)mineral oil
b)olive oil
c)almond oil
d)lavender oil - ANSWER Mineral oil
The safety practices that should be observed in a beauty salon when using electrical appli-
ances
a)are according to international regulations for all enterprises
b)are established by CIDESCO international
c)are established by local authorities
d)are the responsibility of the employer of the salon - ANSWER c) are established by local
authorities
2
, A human cell with 22 autosomes and a Y sex chromosome would be a
a)hair follicle
b)sperm
c)ovum
d)zygote - ANSWER Sperm
When a cell dividing ,the nucleus forms
a)chromosomes
b)centrioles
c)cell membrane
d)cytoplasm - ANSWER Chromosomes
The characteristic tissue of skin glands is
a)lymphoid tissue
b)white fibrous tissue
c)nerve tissue
d)epithelial tissue - ANSWER Epithelial tissue
The amount of energy used in a unit of time ,by a fasting ,resting subject to maintain vital
functions is known as
a)metabolism
b)basal metabolic rate
c)anabolism
d)catabolism - ANSWER Basal metabolic rate
During a period of cell growth
a)only catabolism takes place
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a) a negatively charged chloride atom (Cl-)
b) a positively charged hydrogen atom (H+)
c) a negatively charged electron orbiting around the nucleus of an atom
d) a positively charged proton in the nucleus of an atom - ANSWER a) a negatively
charged chloride atom (Cl-)
If the PH of a solution is between 1&3 the solution is a strong
a)strong acid
b)strong alkali
c)weak acid
d)weak alkali - ANSWER Strong acid
Sublimation is the change of matter from
a)a gas to a solid
b)a liquid to a solid
c)a liquid to a gas
d)a solid to a gas - ANSWER A solid to a gas
Which one of the following belongs to the science of chemistry
a)the alteration of the structure of molecules
b)the condensation of vapour
c)the conduction of electricity along a wire
1
,d)the production of rays in the environment - ANSWER The alteration of the structure of
molecules
An atom is electrically neutral because it has
a)more protons than an electrons
b)more electrons than protons
c)has the same number of protons
d)has the same number of protons &electrons - ANSWER Has the same number of pro-
tons &electrons
A substance which chemically cannot be broken down in to simpler substances is called
a)a compound
b)an element
c)a mixture
d)an emulsion - ANSWER An element
Which one of the following chemicals consists mainly of hydrocarbon
a)mineral oil
b)olive oil
c)almond oil
d)lavender oil - ANSWER Mineral oil
The safety practices that should be observed in a beauty salon when using electrical appli-
ances
a)are according to international regulations for all enterprises
b)are established by CIDESCO international
c)are established by local authorities
d)are the responsibility of the employer of the salon - ANSWER c) are established by local
authorities
2
, A human cell with 22 autosomes and a Y sex chromosome would be a
a)hair follicle
b)sperm
c)ovum
d)zygote - ANSWER Sperm
When a cell dividing ,the nucleus forms
a)chromosomes
b)centrioles
c)cell membrane
d)cytoplasm - ANSWER Chromosomes
The characteristic tissue of skin glands is
a)lymphoid tissue
b)white fibrous tissue
c)nerve tissue
d)epithelial tissue - ANSWER Epithelial tissue
The amount of energy used in a unit of time ,by a fasting ,resting subject to maintain vital
functions is known as
a)metabolism
b)basal metabolic rate
c)anabolism
d)catabolism - ANSWER Basal metabolic rate
During a period of cell growth
a)only catabolism takes place
3
