IIT JEE Practice Question and Answer

Q: Which of these was an action of Farmers Alliances? 2210 0

  • 1
    Involving farmers in political action
    Correct
    Wrong
  • 2
    Encouraging farmers to give up farming
    Correct
    Wrong
  • 3
    Helping farmers fight for better prices
    Correct
    Wrong
  • 4
    Both A & C
    Correct
    Wrong
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Answer : 4. "Both A & C"
Explanation :

Answer: D) Both A & C Explanation: The Farmers Alliance was an organized agrarian economic movement among American farmers that developed and flourished in 1875.   One of the goals of the organization was to end the adverse effects of the crop-lien system on farmers in the period following the American Civil War.   The Farmer's Alliance moved into politics in the early 1890s under the banner of the People's Party, commonly known as the "Populists."

Q: Which of the following CANNOT be considered a single phase? 2210 0

  • 1
    a heterogeneous mixture
    Correct
    Wrong
  • 2
    a pure solid
    Correct
    Wrong
  • 3
    a pure liquid
    Correct
    Wrong
  • 4
    a homogeneous mixture
    Correct
    Wrong
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Answer : 1. "a heterogeneous mixture"
Explanation :

Answer: A) a heterogeneous mixture Explanation: A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.   Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.

Q: Rita ? into the cellar. Which of the following words best suitable in the place of '?' 2209 0

  • 1
    ascended
    Correct
    Wrong
  • 2
    rescinded
    Correct
    Wrong
  • 3
    descended
    Correct
    Wrong
  • 4
    intended
    Correct
    Wrong
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Answer : 3. "descended"
Explanation :

Answer: C) descended Explanation: Rita descended into the cellar. Descended means went down. As the cellar is in the basement, she must go down. Options and meanings ::  descended  -  went down  rescinded   - cancelled or annulled ascended   - went up  intended    - meant

Q: What is the equivalent compound ratio of 5:6::7:10::6:5  ? 2207 0

  • 1
    7 : 9
    Correct
    Wrong
  • 2
    9 : 7
    Correct
    Wrong
  • 3
    7 : 4
    Correct
    Wrong
  • 4
    7 : 10
    Correct
    Wrong
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Answer : 4. "7 : 10"
Explanation :

Answer: D) 7 : 10 Explanation: Given 5:6 :: 7:10 :: 6:5 We know that compound ratio is calculated as a:b :: c:d :: e:f(axcxe):(bxdxf) => (5x7x6):(6x10x5)=> (210):(300)= 7:10

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Answer : 1. "25"
Explanation :

Answer: A) 25 Explanation: Let x be number of houses and y be colors. on the basis of question x = 4y+1x = 5(y-1)on solving these 2 equations x = 25

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Answer : 3. "48"
Explanation :

Answer: C) 48 Explanation: No. of students will be 98 x 12 = 1176let us consider n circles then 1 + 2 + 3 + ....+ n = 1176n(n+1)/2 = 1176n = 48 circles.

Q: Water is an example of? 2206 0

  • 1
    Element
    Correct
    Wrong
  • 2
    Molecule
    Correct
    Wrong
  • 3
    Compound
    Correct
    Wrong
  • 4
    Both B & C
    Correct
    Wrong
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Answer : 4. "Both B & C"
Explanation :

Answer: D) Both B & C Explanation: Why Water Is Not an Element : An element is a substance consisting of only one type of atom. Water consists of two types of atoms: hydrogen and oxygen.   water is both a molecule and a compound : A compound forms whenever two or more atoms form chemical bonds with each other. The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms. Thus, water is a compound.   It's also a molecule, which is any chemical species formed by two or more atoms chemically bonded to each other. The terms molecule and compound mean the same thing and can be used interchangeably.   Hence, water is both a molecule and a compound.

Q: Callous is the opposite of 2204 0

  • 1
    emotionally hardened
    Correct
    Wrong
  • 2
    insensitive
    Correct
    Wrong
  • 3
    sympathetic
    Correct
    Wrong
  • 4
    Unkind
    Correct
    Wrong
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Answer : 3. "sympathetic"
Explanation :

Answer: C) sympathetic Explanation: A callous person is insensitive or emotionally hardened.   Hence, Callous is the opposite of Sympathetic, kind hearted, sensitive, nice,...

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