Insights Static Quiz -67, 2018
Science
INSIGHTS IAS QUIZ ON STATIC SYLLABUS - 2018
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Question 1 of 5
1. Question
Find the correct match
Vitamin/Mineral – Deficiency disease
- Vitamin A – Loss of vision
- Vitamin C – Scurvy
- Calcium – Weak bones
Select the right ones from the codes
Correct
Answer – d
All are true
Incorrect
Answer – d
All are true
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Question 2 of 5
2. Question
Metals of low reactivity are likely to be found as minerals in ores of
- Sulphide
- Carbonate
Select the right code
Correct
Answer – a
Incorrect
Answer – a
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Question 3 of 5
3. Question
Red is used as a danger colour because
Correct
Answer – b
The molecules of air and other fine particles in the atmosphere have size smaller than the wavelength of visible light. These are more effective in scattering light of shorter wavelengths at the blue end than light of longer wavelengths at the red end. The red light has a wavelength about 1.8 times greater than blue light. Thus, when sunlight passes through the atmosphere, the fine particles in air scatter the blue colour (shorter wavelengths) more strongly than red.The ‘danger’ signal lights are red in colour because the red is least scattered by fog or smoke. Therefore, it can be seen in the same colour at a distance.
Incorrect
Answer – b
The molecules of air and other fine particles in the atmosphere have size smaller than the wavelength of visible light. These are more effective in scattering light of shorter wavelengths at the blue end than light of longer wavelengths at the red end. The red light has a wavelength about 1.8 times greater than blue light. Thus, when sunlight passes through the atmosphere, the fine particles in air scatter the blue colour (shorter wavelengths) more strongly than red.The ‘danger’ signal lights are red in colour because the red is least scattered by fog or smoke. Therefore, it can be seen in the same colour at a distance.
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Question 4 of 5
4. Question
Consider the following statements
- Tetra chloroethene can be used for drycleaning of clothes
- Chlorine gas is used for bleaching of paper
- Hydrogen peroxide can be used for both drycleaning of clothes and bleaching of paper
Select from the codes below
Correct
Answer – d
- Tetra chlroroethene (Cl2C=CCl2) was earlier used as solvent for dry cleaning. The compound contaminates the ground water and is also a suspected carcinogen. The process using this compound is now being replaced by a process, where liquefied carbondioxide, with a suitable detergent is used. These days hydrogen peroxide (H2O2) is used for the purpose of bleaching clothes in the process of laundary, which gives better results and makes use of lesser amount of water
- Chlorine gas was used earlier for bleaching paper. These days, hydrogen peroxide (H2O2) with suitable catalyst, which promotes the bleaching action of hydrogen peroxide, is used.
Incorrect
Answer – d
- Tetra chlroroethene (Cl2C=CCl2) was earlier used as solvent for dry cleaning. The compound contaminates the ground water and is also a suspected carcinogen. The process using this compound is now being replaced by a process, where liquefied carbondioxide, with a suitable detergent is used. These days hydrogen peroxide (H2O2) is used for the purpose of bleaching clothes in the process of laundary, which gives better results and makes use of lesser amount of water
- Chlorine gas was used earlier for bleaching paper. These days, hydrogen peroxide (H2O2) with suitable catalyst, which promotes the bleaching action of hydrogen peroxide, is used.
-
Question 5 of 5
5. Question
Consider the following about Oral Rehydration Solution
- It is important to control diarrhoea.
- It is often given alongside Zinc tablets
- It is associated with Rotavirus vaccine.
Select from the codes below
Correct
Answer – d
Explanation
- WHO estimated diarrhea is second leading cause of death under five year age of children worldwide. ORS is a glucose-electrolyte solution containing salt and
sugar water important to tackle diarrhea. - It is often supplemented with Zinc tablet, and both are together called ORS Jodi
- Apart from oral medicine Health ministry introduced Rotavirus vaccine under UIP will also help in reducing diarrhoea mortality.
Incorrect
Answer – d
Explanation
- WHO estimated diarrhea is second leading cause of death under five year age of children worldwide. ORS is a glucose-electrolyte solution containing salt and
sugar water important to tackle diarrhea. - It is often supplemented with Zinc tablet, and both are together called ORS Jodi
- Apart from oral medicine Health ministry introduced Rotavirus vaccine under UIP will also help in reducing diarrhoea mortality.
