IIT JEE Practice Question and Answer

Q: With which Sport is the Jules Rimet Trophy associated? 4680 0

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    Hockey
    Correct
    Wrong
  • 2
    Badminton
    Correct
    Wrong
  • 3
    Golf
    Correct
    Wrong
  • 4
    Football
    Correct
    Wrong
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Answer : 4. "Football"
Explanation :

Answer: D) Football Explanation: Jules Rimet Trophy is associated with the game Football. The Jules Rimet Trophy was named in the honour of Jules Rimet, who is FIFA's longest-serving president, in office for 33 years.

Q: Chennai express left Hyderabad for Chennai at 14 : 30 hours, travelling at a speed of 60 kmph and Charminar Express left Hyderabad for Chennai on the same day at 16 : 30 hours, travelling at a speed of 80 kmph. How far away from Hyderabad will the two trains meet? 1804 0

  • 1
    360 kms
    Correct
    Wrong
  • 2
    480 kms
    Correct
    Wrong
  • 3
    520 kms
    Correct
    Wrong
  • 4
    240 kms
    Correct
    Wrong
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Answer : 2. "480 kms"
Explanation :

Answer: B) 480 kms Explanation: Now, the distance covered by Chennai express in 2 hrs = 60 x 2 = 120 kms Let the Charminar Express takes 't' hrs to catch Chennai express => 80 x t = 60 x (2 + t) => 80 t = 120 + 60t => t = 6 hrs   Therefore, the distance away from Hyderabad the two trains meet = 80 x 6 = 480 kms.

Q: The average weight of 45 passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the same stop. What is the new average weight of the bus? 5461 0

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    54.21 kgs
    Correct
    Wrong
  • 2
    51.07 kgs
    Correct
    Wrong
  • 3
    52.66 kgs
    Correct
    Wrong
  • 4
    53.45 kgs
    Correct
    Wrong
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Answer : 3. "52.66 kgs"
Explanation :

Answer: C) 52.66 kgs Explanation: Given total number of passengers in the bus = 45 First average weight of 45 passengers = 52 kgs Average weight of 5 passengers who leave bus = 48 Average weight of 5 passengers who joined the bus = 54 Therefore, the net average weight of the bus is given by = 45 x 52 - 5 x 48 + 5 x 5445 = 237045= 1583= 52.66 kgs.

Q: Which of the following is an Organic Molecule? 1691 0

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    Nitrogen gas
    Correct
    Wrong
  • 2
    Ammonia
    Correct
    Wrong
  • 3
    Fructose
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 3. "Fructose"
Explanation :

Answer: C) Fructose Explanation: Fructose is an Organic molecule among the given options.    Organic Molecules : An organic molecule is one which contains carbon, although not all compounds that contain carbon are organic molecules. Noticeable exceptions are carbon monoxide (CO), carbon dioxide (CO2), carbonates (e.g. calcium carbonate), carbides (e.g. calcium carbide) and cyanides (e.g. sodium cyanide). Pure carbon compounds such as diamond and graphite are also not organic compounds. Organic molecules can range in size from simple molecules to complex structures containing thousands of atoms.   Although carbon is present in all organic compounds, other elements such as hydrogen (H), oxygen(O), nitrogen (N), sulfur (S) and phosphorus (P) are also common in these molecules.   In simple, Molecules needed for life that have carbon are called Organic Molecules.

Q: Synapsis occurs during 1666 0

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

Answer: B) Meiosis Explanation: Synapsis is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis. It is also called as Syndesis.

Q: How many words can be formed with or without meaning by using three letters out of k, l, m, n, o without repetition of alphabets. 1290 0

  • 1
    60
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    240
    Correct
    Wrong
  • 4
    30
    Correct
    Wrong
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Answer : 1. "60"
Explanation :

Answer: A) 60 Explanation: Given letters are k, l, m, n, o = 5 number of letters to be in the words = 3 Total number of words that can be formed from these 5 letters taken 3 at a time without repetation of letters = 5P3 ways. ⇒ 5P3 = 5 x 4 x 3 = 60 words.

Q: What is common between Aerobic and Anaerobic Respiration? 1601 0

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    Krebs cycle
    Correct
    Wrong
  • 2
    Glycolysis
    Correct
    Wrong
  • 3
    Electron transport chain
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "Glycolysis"
Explanation :

Answer: B) Glycolysis Explanation: Glycolysis is common between Aerobic and Anaerobic Respiration.   Cellular respiration is the process by which glucose is broken down to form ATP molecules, which act as carriers of cellular energy. The first phase is called glycolysis and is common to both aerobic (respiration in the presence of oxygen) and anaerobic (respiration in the absence of oxygen) respiration.   During glycolysis, glucose is split to forms two pyruvate molecules and 2 molecules of ATP. This occurs in the cytoplasm of the cell.   If oxygen in present, the pyruvate molecules will be used in the Krebs cycle, to yield more ATP molecules. If oxygen is absent, the pyruvate is converted into lactic acid, or ethanol and carbon dioxide, in animals or plants, respectively.

Q: One important result of the French Revolution was that 2117 0

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    France lost its spirit of nationalism
    Correct
    Wrong
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    Political power shifted to the bourgeoisie
    Correct
    Wrong
  • 3
    France enjoyed a lengthy period of peace and prosperity
    Correct
    Wrong
  • 4
    The church was restored to its former role and power in the French government
    Correct
    Wrong
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Answer : 2. "Political power shifted to the bourgeoisie"
Explanation :

Answer: B) Political power shifted to the bourgeoisie Explanation: One of the most important result of the French Revolution was that Political power shifted to the bourgeoisie (Middle class people).   The Great French Revolution of 1789 not only overthrew the monarchy in France, but ultimately led to the destruction of the Old Order across Europe.    Prior to the French Revolution, the bourgeoisie or middle class, belonged to the Third Estate, which had the largest tax burden and virtually no rights.   The bourgeoisie gained an enormous amount of political power when the National Assembly issued the Declaration of the Rights of Man, and drafted a new constitution for France.

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