IIT JEE Practice Question and Answer

Q: Where are Enzymes found? 1327 0

  • 1
    food
    Correct
    Wrong
  • 2
    human body
    Correct
    Wrong
  • 3
    medicines
    Correct
    Wrong
  • 4
    none
    Correct
    Wrong
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Answer : 2. "human body"
Explanation :

Answer: B) human body Explanation: Enzymes play an essential role in each living cell of our body. Enzymes are globular proteins that control biological reactions. These are of two types. 1. Intracellular enzymes 2. Extracellular enzymes   Intracellular enzymes are found inside the cell. Extracellular enzymes act outside the cell.   Enzymes are produced by exocrine glands. Digestive enzymes of diverse specificities are secreted by the salivary glands, stomach, pancreas, and the small intestine.

Q: What Room can Nobody Enter? 1644 0

  • 1
    War room
    Correct
    Wrong
  • 2
    Spare room
    Correct
    Wrong
  • 3
    Escape room
    Correct
    Wrong
  • 4
    Mushroom
    Correct
    Wrong
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Answer : 4. "Mushroom"
Explanation :

Answer: D) Mushroom Explanation: The Room can Nobody Enter is a Mushroom.

Q: Are Alternate Exterior Angles congruent? 1307 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE Answer & Explanation Answer:
    Correct
    Wrong
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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: We know that, Alternate Exterior Angles Theorem:: The Alternate Exterior Angles Theorem states that, when two parallel lines are cut by a transversal, the resulting alternate exterior angles are congruent . Converse of the Alternate Exterior Angles Theorem :: Converse of the Alternate Exterior Angles Theorem states that, If two lines are cut by a transversal and the alternate exterior angles are congruent, then the lines are parallel.

Q: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1720 0

  • 1
    Rs. 3845
    Correct
    Wrong
  • 2
    Rs. 4826
    Correct
    Wrong
  • 3
    Rs. 5142
    Correct
    Wrong
  • 4
    Rs. 4415
    Correct
    Wrong
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Answer : 2. "Rs. 4826"
Explanation :

Answer: B) Rs. 4826 Explanation: We know the formula for calculating The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time Here P = 5000, r1 = 10, r2 = 20 Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625 C = Rs. 4826.

Q: What is the simplest form of matter? 1674 0

  • 1
    Element
    Correct
    Wrong
  • 2
    Molecule
    Correct
    Wrong
  • 3
    Atom
    Correct
    Wrong
  • 4
    Compound
    Correct
    Wrong
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Answer : 1. "Element"
Explanation :

Answer: A) Element Explanation: The simplest form of matter that has a unique set of properties and is cannot be broken down into simpler substances by chemical means is called an Element.   An Atom is the simplest form of an element. The simplest form of some elements is a Molecule. When an element consists of two identical atoms it is called a diatomic molecule. A substance that contains two or more elements chemically combined in a fixed proportion is called a Compound.

Q: Which is an example of Phototropism? 1293 0

  • 1
    roots of a plant following water
    Correct
    Wrong
  • 2
    plant bending toward the light
    Correct
    Wrong
  • 3
    roots growing into the soil
    Correct
    Wrong
  • 4
    a venus flytrap capturing a fly
    Correct
    Wrong
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Answer : 2. "plant bending toward the light"
Explanation :

Answer: B) plant bending toward the light Explanation: Phototropism is the ability of a photosynthesizing organism, to grow directionally in response to a light source. It is very common in plants, but can also occur in other organisms such as fungi. Example :: Sunflower

Q: Which of the following does not occur during Mitosis? 1618 0

  • 1
    spindle formation
    Correct
    Wrong
  • 2
    condensation of the chromosomes
    Correct
    Wrong
  • 3
    breakdown of the nuclear membrane
    Correct
    Wrong
  • 4
    replication of the DNA
    Correct
    Wrong
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Answer : 4. "replication of the DNA"
Explanation :

Answer: D) replication of the DNA Explanation: Replication of the DNA does not occur during Mitosis.

Q: 19 C in a CB 1797 0

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Answer :
Explanation :

19 C in a CB means 19 Coins in a Carrom Board. We have 9 white coins, 9 black coins and one red coin in a carrom board.

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