IIT JEE Practice Question and Answer

Q: Which liquid is the most viscous? 1223 0

  • 1
    Water
    Correct
    Wrong
  • 2
    Diesel
    Correct
    Wrong
  • 3
    Milk
    Correct
    Wrong
  • 4
    Oil
    Correct
    Wrong
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Answer : 4. "Oil"
Explanation :

Answer: D) Oil Explanation: Here Oil is the most viscous liquid. The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

Q: What has 4 Eyes But cannot see? 1222 0

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Answer :
Explanation :

What has 4 Eyes But cannot see is Mississippi. The wording of Mississippi has 4 'i''s. But it can't see.

Q: What value will come in place of question mark (?) in following number series? 12, 16, 32, 68, ? 1222 0

  • 1
    198
    Correct
    Wrong
  • 2
    164
    Correct
    Wrong
  • 3
    132
    Correct
    Wrong
  • 4
    118
    Correct
    Wrong
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Answer : 3. "132"
Explanation :

Answer: C) 132 Explanation: Given series is    12        16         32          68         ?   Here it follows a pattern that,   12   12 + (2x2) = 16   16 + (4x4) = 32   32 + (6x6) = 68   68 + (8x8) = 132

Q: Which of the following team has won the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands? 1220 0

  • 1
    India
    Correct
    Wrong
  • 2
    Australia
    Correct
    Wrong
  • 3
    Brazil
    Correct
    Wrong
  • 4
    The Netherlands
    Correct
    Wrong
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Answer : 2. "Australia"
Explanation :

Answer: B) Australia Explanation: In the summit clash of the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands, India lost to defending champions Australia via penalty shoot-off. The match went into the shoot-off after both the teams were locked at 1-1 in regulation time.

Q: 54, 60  LCM is 1220 0

  • 1
    600
    Correct
    Wrong
  • 2
    540
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    54
    Correct
    Wrong
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Answer : 2. "540"
Explanation :

Answer: B) 540 Explanation: Here the LCM of 54, 60 is   => 2 x 3 x 3 x 3 x 10 = 6 x 9 x 10 = 54 x 10 = 540.

Q: What is the smallest unit that can evolve? 1219 0

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Answer :
Explanation :

The population is the smallest unit of living organisms that can undergo evolution.

Q: Origins of genetic variation 1219 0

  • 1
    intragenic recombination
    Correct
    Wrong
  • 2
    mutation
    Correct
    Wrong
  • 3
    reticulation
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: Random mutations are the ultimate source of genetic variation. Mutations are likely to be rare and most mutations are neutral or deleterious, but in some instances, the new alleles can be favored by natural selection. Polyploidy is an example of chromosomal mutation.   Mutations are changes in the DNA. A single mutation can have a large effect. 1) mutation - an alteration in DNA sequence, various types 2) intragenic recombination - results in entirely new associations of genes not present in either parental genome. Two forms of intragenic recombination: a) crossing overb) independent assortment3) reticulation – acquisition of genetic material from unrelated or relatively unrelated sources (e.g., hybrid species, horizontal gene transfer).

Q: Who has been elected as 13th Vice President of India ? 1219 0

  • 1
    M Venkaiah Naidu
    Correct
    Wrong
  • 2
    Gopalkrishna Gandhi
    Correct
    Wrong
  • 3
    Hamid Ansari
    Correct
    Wrong
  • 4
    Ram Nath Kovind
    Correct
    Wrong
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Answer : 1. "M Venkaiah Naidu"
Explanation :

Answer: A) M Venkaiah Naidu Explanation:

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