IIT JEE Practice Question and Answer

Q: The Most Important Ore of Aluminium is 1867 0

  • 1
    Calamine
    Correct
    Wrong
  • 2
    Monazite
    Correct
    Wrong
  • 3
    Magnetite
    Correct
    Wrong
  • 4
    Bauxite
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Bauxite"
Explanation :

Answer: D) Bauxite Explanation:

Q: The Rain Shadow Effect is associated with 1720 1

  • 1
    Convectional rainfall
    Correct
    Wrong
  • 2
    Frontal rainfall
    Correct
    Wrong
  • 3
    Cyclonic rainfall
    Correct
    Wrong
  • 4
    Orographic rainfall
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Orographic rainfall"
Explanation :

Answer: D) Orographic rainfall Explanation: Orographic precipitation or Rain produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.   Some also falls a short distance downwind of the ridge and is sometimes called spillover. On the lee side of the mountain range, rainfall is usually low, and the area is said to be in a Rain Shadow.

Q: P, Q, R, S, T and U are six consecutive odd numbers and their average is 52. What is the product of P and U ? 2569 0

  • 1
    2212
    Correct
    Wrong
  • 2
    2154
    Correct
    Wrong
  • 3
    2349
    Correct
    Wrong
  • 4
    2679
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "2679"
Explanation :

Answer: D) 2679 Explanation: Let x, x+2, x+4, x+6, x+8 and x+10 are six consecutive odd numbers. Given that their average is 52 Then, x + x+2 + x+4 + x+6 + x+8 + x+10 = 52×6 6x + 30 = 312 x = 47 So Product = 47 × 57 = 2679

Q: The Gas used for Artificial Ripening of Green Fruit is 1458 0

  • 1
    Acetone
    Correct
    Wrong
  • 2
    Di Carbonate
    Correct
    Wrong
  • 3
    Ethylene
    Correct
    Wrong
  • 4
    Ethyl Alcohol
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Ethylene"
Explanation :

Answer: C) Ethylene Explanation: Ethylene is used for Artificial Ripening of Green Fruit. Calcium carbide is also used in some countries for artificially ripening fruit. When calcium carbide comes in contact with moisture, it produces acetylene gas, which is quite similar in its effects to the natural ripening agent, ethylene

Q: A seller charges 28% more from a customer as GST on an article. If customer paid Rs. 4544, what is the cost price of the article? 1305 0

  • 1
    Rs. 3550
    Correct
    Wrong
  • 2
    Rs. 2650
    Correct
    Wrong
  • 3
    Rs. 3840
    Correct
    Wrong
  • 4
    Rs. 2450
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Rs. 3550"
Explanation :

Answer: A) Rs. 3550 Explanation: Let the cost price of the article be 'P' Then from given data, P + 28P100 = 4544=> 128P = 454400=> P = 3550 Hence, the cost price of the article = P = Rs. 3550

Q: Which is the largest coal producing country in the World? 1529 0

  • 1
    India
    Correct
    Wrong
  • 2
    China
    Correct
    Wrong
  • 3
    Russia
    Correct
    Wrong
  • 4
    New-zealand
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "China"
Explanation :

Answer: B) China Explanation: China has been by far the biggest coal producing country over the last three decades. The country produced about 3.6 billion tonnes (Bt) of coal in 2012 accounting for over 47% of the world's total coal output.

Q: 3 : 12 :: 5 : ? 1297 0

  • 1
    17
    Correct
    Wrong
  • 2
    30
    Correct
    Wrong
  • 3
    26
    Correct
    Wrong
  • 4
    32
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "30"
Explanation :

Answer: B) 30 Explanation: 332 + 3 = 12552 + 5 = 30

Q: Which of the following metal is generally used for making filaments of bulb? 2785 0

  • 1
    W
    Correct
    Wrong
  • 2
    Ag
    Correct
    Wrong
  • 3
    Fe
    Correct
    Wrong
  • 4
    Rh
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "W"
Explanation :

Answer: A) W Explanation: W is the symbol for chemical element Tungsten or Wolfram. It is used in making filaments of bulbs.

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully