IIT JEE प्रश्न और उत्तर का अभ्यास करें

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

  • 1
    Involving farmers in political action
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  • 2
    Encouraging farmers to give up farming
    सही
    गलत
  • 3
    Helping farmers fight for better prices
    सही
    गलत
  • 4
    Both A & C
    सही
    गलत
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उत्तर : 4. "Both A & C"
व्याख्या :

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."

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

  • 1
    a heterogeneous mixture
    सही
    गलत
  • 2
    a pure solid
    सही
    गलत
  • 3
    a pure liquid
    सही
    गलत
  • 4
    a homogeneous mixture
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    गलत
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उत्तर : 1. "a heterogeneous mixture"
व्याख्या :

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.

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

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    ascended
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  • 2
    rescinded
    सही
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  • 3
    descended
    सही
    गलत
  • 4
    intended
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उत्तर : 3. "descended"
व्याख्या :

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 Options and meanings ::  descended  -  went down  rescinded   - cancelled or annulled ascended   - went up  intended    - meant

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

  • 1
    7 : 9
    सही
    गलत
  • 2
    9 : 7
    सही
    गलत
  • 3
    7 : 4
    सही
    गलत
  • 4
    7 : 10
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    गलत
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उत्तर : 4. "7 : 10"
व्याख्या :

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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उत्तर : 1. "25"
व्याख्या :

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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उत्तर : 3. "48"
व्याख्या :

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.

प्र: Water is an example of? 2206 0

  • 1
    Element
    सही
    गलत
  • 2
    Molecule
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    गलत
  • 3
    Compound
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    गलत
  • 4
    Both B & C
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उत्तर : 4. "Both B & C"
व्याख्या :

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.

प्र: Callous is the opposite of 2204 0

  • 1
    emotionally hardened
    सही
    गलत
  • 2
    insensitive
    सही
    गलत
  • 3
    sympathetic
    सही
    गलत
  • 4
    Unkind
    सही
    गलत
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उत्तर : 3. "sympathetic"
व्याख्या :

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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