IIT JEE Practice Question and Answer

Q: Give the iupac name for the following compound? 1581 0

  • 1
    Sec-Butylcyclohexine
    Correct
    Wrong
  • 2
    Isopropylcyclohexane
    Correct
    Wrong
  • 3
    2-Cyclohexybutane
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "Isopropylcyclohexane"
Explanation :

Answer: B) Isopropylcyclohexane Explanation:

Q: What carries Blood away from the Heart? 1580 0

  • 1
    Arteries
    Correct
    Wrong
  • 2
    Veins
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Arteries"
Explanation :

Answer: A) Arteries Explanation: We know that the circulatory system of our body is a loop. The Heart is the pump, the arteries and their smaller branches (arterioles) carry oxygen rich blood all through your body tissues from the heart and the veins and their smaller branches (venules) carry oxygen depleted blood and waste products back to the heart from all the body parts.

Q: 9 girls working 7 hours a day can complete a piece of work in 15 day. In how many days can 6 girls working for 9 hours a day, complete the same piece of work? 1580 0

  • 1
    35/4 days
    Correct
    Wrong
  • 2
    17.5 days
    Correct
    Wrong
  • 3
    19 3/4 days
    Correct
    Wrong
  • 4
    37/3 days
    Correct
    Wrong
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Answer : 2. "17.5 days"
Explanation :

Answer: B) 17.5 days Explanation: Let the number of days be 'p'  As the work is same, we know that M1 x D1 x H1 = M2 x D2 x H2 Where M = Men, D = Days, H = Hours per day  Here M1 = 9, D1 = 15, H1 = 7  M2 = 6, D2 = p, H2 = 9  => 9 x 15 x 7 = 6 x p x 9  => p = 35/2 = 17.5 days.

Q: Which state announced the shift of financial year from March - April to Jan - December  ? 1579 0

  • 1
    Assam
    Correct
    Wrong
  • 2
    Goa
    Correct
    Wrong
  • 3
    Kerala
    Correct
    Wrong
  • 4
    Madhya Pradesh
    Correct
    Wrong
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Answer : 4. "Madhya Pradesh"
Explanation :

Answer: D) Madhya Pradesh Explanation:

Q: If the age of father is 4 years greater than the mother and 28 years greater than the son,then what is the age of the father? which one should be used to calculate the age ? 1579 0

  • 1
    mother/son = Non-prime number
    Correct
    Wrong
  • 2
    mother/son = Perfect square number A) only A alone is sufficient B) only B alone is sufficient
    Correct
    Wrong
  • 3
    both A and B are required
    Correct
    Wrong
  • 4
    A) only A alone is sufficient B) only B alone is sufficient C) both A and B are required D)
    Correct
    Wrong
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Answer : 2. "mother/son = Perfect square number A) only A alone is sufficient B) only B alone is sufficient"
Explanation :

Answer: B) only B alone is sufficient Explanation: For the given problem there are three possiblities.Father's age can be = 36, 31, 29Mother's age = 32, 27, 25Son's age = 8, 3, 1. By using only B it can be calculated.

Q: What provides electrons for the light reactions? 1579 0

  • 1
    Water
    Correct
    Wrong
  • 2
    Oxygen
    Correct
    Wrong
  • 3
    Carbon dioxide
    Correct
    Wrong
  • 4
    Light
    Correct
    Wrong
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Answer : 1. "Water"
Explanation :

Answer: A) Water Explanation: Electrons are stripped from water in the light reactions of photosynthesis. Light provides the energy to excite electrons.   ATP and NADPH are both products of the light reactions and are used to power the Calvin cycle.

Q: What is the shortest phase of the cell cycle? 1579 0

  • 1
    M
    Correct
    Wrong
  • 2
    G1
    Correct
    Wrong
  • 3
    S
    Correct
    Wrong
  • 4
    G2
    Correct
    Wrong
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Answer : 1. "M"
Explanation :

Answer: A) M Explanation: Longest and shortest phases Of cell cycle: Shortest Phase - M phase or Mitotic phase. Longest phase - G1 phase of the Interphase Longest and shortest phases During Mitosis:Longest Phase - Prophase Shortest Phase - Anaphase

Q: Which property classification would include tools? 1578 0

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Answer :
Explanation :

Durable property classification would include tools.  Nonexpendable property is property which has a continuing use, is not consumed in use, is of a durable nature with an expected service life of one or more years, has an acquisition cost of $300 or more, and does not become a fixture or lose its identity as a component of other equipment or plant.

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