Q.1. State whether the following statements are true or false. Correct the false statements.
(a) Teflon is the polymer of tetrafluoroethylene.
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(b) The disease ADHD (Attention Deficit Hyperactivity Disorder) occur due to radioactive radia-
tion.
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(c) Some artificial food colours contain small quantities of mercury and lead.
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(d Alum is used in the process of water purification.
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(e Radioactive elements are only used for making atom bombs.
Ans.
Answers
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1
Answer:
1. True
2. False
ADHD-Acquired Immuno Deficiency Syndrome.
It occurs due to HIV virus which gets infected from another person with ADHD.
3. True
4. True
5. False
The radioactive elements uranium and plutonium are used in the generation of electricity in nuclear power plants. Small radiactive sources of particles are used in many home smoke detectors.
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