INSIGHT UPSC QUIZ

Consider the following statements about the ‘properties of ethanol’: 

1. Ethanol is insoluble in water. 

2. Consumption of small quantities of dilute ethanol causes drunkenness. 

3. Ethanol can be blended with diesel.

4. Ethanol is used as a solvent in many medicines.

Which of the statements given above are correct?

The use of an electric fuse protects the electric circuit and the appliances from a possible damage by

 Water vapour present in the atmosphere is formed due to which of the following factors?

1. Heating of water bodies.

2. Activities of living organisms.

3. Weathering of rocks.

4. Photosynthesis.

Select the correct answer using the code given below:

Desirable characteristics of a crop variety helps in easy adoption of that crop by the farmers. In this context, consider the following statements:

1. Incorporating desirable characters into crop varieties can be done through fertilisation.

2. Dwarfness is desired in cereals, so that less nutrients are consumed by these crops. 

3. Hybridisation refers to crossing between genetically similar plants.

Which of the statement(s) given above is/are correct?

 Fodder crops are raised as food for the livestock. Which among the following is/are fodder crops?

1. Sudan Grass

2. Oats

3. Wheat

4. Berseem

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Unicellular organism are unique because they are made up of a single cell only. Which of the following is/are examples of unicellular organisms?

1. Amoeba

2. Yeast

3. Bacteria

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The nearest and the farthest points up to which a normal human eye can see objects clearly are between: 

Match the following pairs with reference to different types of ‘Phyla’ with their most distinctive features:

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Which of the following statement(s) is/are correct?

1. Saturated hydrocarbons are linked by only single bonds between the carbon atoms while unsaturated carbon compounds have double or triple bonds. 

2. Saturated hydrocarbons generally give a clean flame while unsaturated carbon compounds give a yellow flame with lots of black smoke.

Select the correct answer using the code given below.

 With reference to heterotrophic eukaryotic organisms, Fungi, consider the following statements:

1. All fungus are parasites as they use host organism for food.

2. Lichens have a symbiotic relationship of blue-green algae and fungus.

3. Yeasts and mushrooms are varities of fungus.

Select the correct answer using the code given below: