IIT JEE Practice Question and Answer

Q: "Confederation Cup" is associated with which of the following game? 1709 0

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    Hockey
    Correct
    Wrong
  • 2
    Badminton
    Correct
    Wrong
  • 3
    Chess
    Correct
    Wrong
  • 4
    Football
    Correct
    Wrong
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Answer : 4. "Football"
Explanation :

Answer: D) Football Explanation:

Q: The length of a class room floor exceeds its breadth by 25 m. The area of the floor remains unchanged when the length is decreased by 10 m but the breadth is increased by 8 m. The area of the floor is 1709 0

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    5100 sq.m
    Correct
    Wrong
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    4870 sq.m
    Correct
    Wrong
  • 3
    4987 sq.m
    Correct
    Wrong
  • 4
    4442 sq.m
    Correct
    Wrong
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Answer : 1. "5100 sq.m"
Explanation :

Answer: A) 5100 sq.m Explanation: Let the breadth of floor be 'b' m. Then, length of the floor is 'l = (b + 25)' Area of the rectangular floor = l x b = (b + 25) × b According to the question, (b + 15) (b + 8) = (b + 25) × b b2 + 8b + 15b + 120 = b2 + 25b 2b = 120 b = 60 m. l = b + 25 = 60 + 25 = 85 m.   Area of the floor = 85 × 60 = 5100 sq.m.

Q: Plants mainly receive their nutrients from 1709 0

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    Sun light
    Correct
    Wrong
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    Soil
    Correct
    Wrong
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    Pesticides
    Correct
    Wrong
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    Chlorophyll
    Correct
    Wrong
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Answer : 2. "Soil"
Explanation :

Answer: B) Soil Explanation: Plants receive their nutrients mainly from Soil. Because Soil contains all Minerals, Water, Humus and some useful Microbes which are responsible for the proper Growth of the Plants.

Q: Name the Indian player who was chosen by the Indian Olympic Association (IO 1706 0

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    as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games. A) P V Sindhu
    Correct
    Wrong
  • 2
    Deepa Karmakar
    Correct
    Wrong
  • 3
    Saina Nehwal
    Correct
    Wrong
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    A) P V Sindhu B) Deepa Karmakar C) Saina Nehwal D)
    Correct
    Wrong
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Answer : 1. "as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games. A) P V Sindhu"
Explanation :

Answer: A) P V Sindhu Explanation: Indian Olympic Association (IOA) chooses P.V. Sindhu as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games. The opening ceremony will be held on April 4, 2018.

Q: If every seconds Saturday and all Sundays are holidays in a 30 days month beginning on Saturday, then how many working days are there in that month ? (Month starts from Saturday) 1706 0

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    25
    Correct
    Wrong
  • 2
    22
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    23
    Correct
    Wrong
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Answer : 4. "23"
Explanation :

Answer: D) 23 Explanation: As month begins on Saturday, so 2nd, 9th, 16th, 23rd, 30th days will be Sundays. While 8th and 22nd days are second Saturdays. Thus, there are 7 holidays in all. Hence, no. of working days = 30 – 7 =23

Q: What type of compound is Lecithin? 1705 0

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    Sterol
    Correct
    Wrong
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    Phospholipid
    Correct
    Wrong
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    Lipoprotein
    Correct
    Wrong
  • 4
    Glycolipid
    Correct
    Wrong
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Answer : 2. "Phospholipid"
Explanation :

Answer: B) Phospholipid Explanation: Lecithin is a Phospholipid type of compounds. The main phospholipids in lecithin from soya and sunflower are phosphatidyl choline, phosphatidyl inositol, phosphatidyl ethanolamine, and phosphatidic acid.

Q: What are the Multiples of 4? 1705 0

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Answer :
Explanation :

The Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 upto 40. Mutiples of 4 means which can be divided by 4 leaving remainder '0'. Common Multiples of 4 & 6 are 12, 24, 36, 48, 60 upto 60.

Q: Is yeast a fungus or bacteria? 1704 0

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Answer :
Explanation :

Yeast belongs to members of the Kingdom Fungi.   Yeast are single-celled microorganisms that are classified, along with molds and mushrooms in Fungi family.    Yeasts are evolutionally diverse and are therefore classified into two separate phyla, Ascomycota or sac fungi and Basidiomycota or higher fungi, that together form the subkingdom Dikarya.

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