IIT JEE Practice Question and Answer

Q: What type of macromolecule is an enzyme? 1238 0

  • 1
    Proteins
    Correct
    Wrong
  • 2
    Saturated fats
    Correct
    Wrong
  • 3
    Phospholipids
    Correct
    Wrong
  • 4
    Lipids
    Correct
    Wrong
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Answer : 1. "Proteins"
Explanation :

Answer: A) Proteins Explanation: Enzymes are protein macromolecules. Enzymes are almost always made of proteins only. Proteins are large biopolymer molecules that are made up of repeating monomer units called amino acids. There are 20 different common amino acids that make up proteins like enzymes. Of these, nine amino acids are essential, which means you must get them from your diet. Enzymes catalyze chemical reactions in biological systems. This means that they speed up the rate of the reaction.

Q: Complete the next number in the given number series? 21 56 102 160 231 316 2473 0

  • 1
    416
    Correct
    Wrong
  • 2
    415
    Correct
    Wrong
  • 3
    414
    Correct
    Wrong
  • 4
    413
    Correct
    Wrong
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Answer : 1. "416"
Explanation :

Answer: A) 416 Explanation: The given number series is  21 56 102 160 231 316   21      56       102        160      231       316         416    +35    +46       +58       +71      +85       +100         +11      +12       +13      +14      +15   Hence, the next number in the given number series is 316 + 100 = 416.

Q: Which best describes Genes? 2304 0

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    long, double chains of nucleic acids.
    Correct
    Wrong
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    long, single chains of amino acids.
    Correct
    Wrong
  • 3
    long, single chains of nucleic acids.
    Correct
    Wrong
  • 4
    long, double chains of amino acids.
    Correct
    Wrong
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Answer : 1. "long, double chains of nucleic acids."
Explanation :

Answer: A) long, double chains of nucleic acids. Explanation: Gene is a segment of chromosomal DNA or a sequence of DNA or RNA that codes for a molecule that has a function. It is the basic physical and functional unit of heredity.   As genes are made up of DNA it impies that they are long, double chains of nucleic acids as DNA is made of nucleic acids.

Q: Simplify the following equation 55.55 + 155 + 15.55 + 0.5 + 0.05 = ? 2510 0

  • 1
    226.65
    Correct
    Wrong
  • 2
    196.55
    Correct
    Wrong
  • 3
    202.35
    Correct
    Wrong
  • 4
    216.66
    Correct
    Wrong
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Answer : 1. "226.65"
Explanation :

Answer: A) 226.65 Explanation: 55.55 + 155 + 15.55 + 0.5 + 0.05 = ?    55.55 155.00  15.55    0.5    0.05 _______ 226.65 _______   Hence, the value of the given equation 55.55 + 155 + 15.55 + 0.5 + 0.05 = 226.65.

Q: छाया क्षेत्र मौजूद है क्योंकि 2266 0

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Answer :
Explanation :

छाया क्षेत्र किसी दिए गए भूकंप से १०४ से १४० डिग्री की कोणीय दूरी से पृथ्वी का वह क्षेत्र है जिसे कोई सीधी पी तरंगें प्राप्त नहीं होती हैं। छाया क्षेत्र S तरंगों के तरल कोर द्वारा पूरी तरह से बंद होने और P तरंगों के तरल कोर द्वारा मुड़े (अपवर्तित) होने के परिणामस्वरूप होता है। शैडो ज़ोन दो प्रकार के होते हैं: एक P तरंगों के लिए और दूसरा S तरंगों के लिए। पी तरंग छाया 104-140 डिग्री, दोनों तरफ; S तरंग छाया एक तरफ के 105 से दूसरी तरफ 105 तक।

Q: Tennis rackets and ballpoint pens are 2559 0

  • 1
    complementary goods
    Correct
    Wrong
  • 2
    independent goods
    Correct
    Wrong
  • 3
    inferior goods
    Correct
    Wrong
  • 4
    substitute goods
    Correct
    Wrong
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Answer : 2. "independent goods"
Explanation :

Answer: B) independent goods Explanation: Tennis rackets and ballpoint pens are two independent goods. Since, one doesn't depend on the other.

Q: Indian state where Uniform Civil Code is applied? 1278 0

  • 1
    Uttarakhand
    Correct
    Wrong
  • 2
    Uttar Pradesh
    Correct
    Wrong
  • 3
    Goa
    Correct
    Wrong
  • 4
    Delhi
    Correct
    Wrong
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Answer : 3. "Goa"
Explanation :

Answer: C) Goa Explanation: Uniform civil code is the ongoing point of debate within Indian mandate to replace personal laws based on the scriptures and customs of each major religious community in India with a common set of rules governing every citizen.   Goa is the only state in INdia where Uniform Civil Code is applied. Laws are equal to all religion. Polygamy and triple talaq are illegal.

Q: Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ? 1262 0

  • 1
    6.5
    Correct
    Wrong
  • 2
    7.5
    Correct
    Wrong
  • 3
    8.5
    Correct
    Wrong
  • 4
    10.5
    Correct
    Wrong
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Answer : 2. "7.5"
Explanation :

Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5   Hence, the next number in the given number series is 7.5.

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