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UPSC Exam  >  UPSC Tests  >  Test: Abrasives, Fertilizer Chemistry, Pesticides - UPSC MCQ

Test: Abrasives, Fertilizer Chemistry, Pesticides - UPSC MCQ


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10 Questions MCQ Test - Test: Abrasives, Fertilizer Chemistry, Pesticides

Test: Abrasives, Fertilizer Chemistry, Pesticides for UPSC 2024 is part of UPSC preparation. The Test: Abrasives, Fertilizer Chemistry, Pesticides questions and answers have been prepared according to the UPSC exam syllabus.The Test: Abrasives, Fertilizer Chemistry, Pesticides MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Abrasives, Fertilizer Chemistry, Pesticides below.
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Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 1
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What are substances or objects used to wear down other objects in order to give them the desired size, shape, or finish?

Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 1
Abrasives are substances or objects used to wear down or rub down other objects to achieve the desired size, shape, or finish. They play a crucial role in various industrial processes, including metalworking, woodworking, and finishing.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 2
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What kind of pesticides are used to destroy unwanted vegetation, including weeds and woody plants?

Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 2
Herbicides are pesticides used to destroy unwanted vegetation, including various types of weeds, grasses, and woody plants.
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Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 3
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Which element is often referred to as the "master key to agriculture" in the context of fertilizers?

Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 3
Phosphorus is often referred to as the "master key to agriculture" due to its crucial role in promoting plant growth and development.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 4
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What are the three primary plant nutrients commonly applied to soils in the form of commercial fertilizers?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 4
The three primary plant nutrients commonly applied to soils as commercial fertilizers are nitrogen (N), phosphorus (P), and potassium (K).
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 5
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Which of the following is NOT an example of a natural abrasive?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 5
Silicon carbide is a synthetic abrasive, not a natural one. Natural abrasives include diamond, quartz, sandstone, and others, which are found in nature.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 6
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Which of the following is NOT a type of insecticide?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 6
Carbonates are not typically used as insecticides. Insecticides include substances like arsenic, rotenone, and copper sulfate, among others.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 7
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What is the main principle behind selective herbicides?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 7
Selective herbicides are designed to kill weeds without harming crops, making them a valuable tool in agriculture.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 8
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Which synthetic organic compound is known for its usage as a highly effective insecticide and has multiple isomeric forms?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 8
DDT (Dichlorodiphenyltrichloroethane) is a synthetic organic compound known for its highly effective insecticidal properties. It exists in multiple isomeric forms and was widely used in the past.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 9
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What is the primary role of petroleum oils when used as an insecticide?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 9
Petroleum oils, when used as an insecticide, primarily work by smothering and suffocating insects, disrupting their ability to breathe and survive.
Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 10
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Which micronutrient is essential for plant growth and is commonly supplied through fertilizers?
Detailed Solution for Test: Abrasives, Fertilizer Chemistry, Pesticides - Question 10
Boron is a micronutrient essential for plant growth and is commonly supplied through fertilizers to ensure healthy plant development. It is one of the nine micronutrients required in small amounts by plants.
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