IIT JEE Practice Question and Answer
8Q: IF YOU HAVE ME, YOU WANT TO SHARE ME. IF YOU SHARE ME, YOU HAVEN'T GOT ME. WHAT AM I? 1392 05b5cc6b3e4d2b4197774d45d
5b5cc6b3e4d2b4197774d45d- Show AnswerHide Answer
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Answer :
Explanation :
A Secret.
Q: Which of the following is a Non Renewable Resource of Energy? 1462 05b5cc6b3e4d2b4197774d450
5b5cc6b3e4d2b4197774d450- 1Wind Powerfalse
- 2Hydrogen Fuelfalse
- 3Natural Gastrue
- 4Solar Energyfalse
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Answer : 3. "Natural Gas"
Explanation :
Answer: C) Natural Gas Explanation: Natural Gas is a Non Renewable Resource of Energy because that does not renew itself once used, unlike the other choices. It is a resource that will not be naturally replenished.
Q: Nitrogen Fixation is carried out primarily by 1458 05b5cc6b3e4d2b4197774d455
5b5cc6b3e4d2b4197774d455- 1Plantsfalse
- 2Humansfalse
- 3Consumersfalse
- 4Bacteriatrue
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Answer : 4. "Bacteria"
Explanation :
Answer: D) Bacteria Explanation: The process by which bacteria convert nitrogen gas (N2) into ammonia (NH3) is called Nitrogen Fixation. The conversion of nitrogen from one form to another in the nitrogen cycle is carried out primarily by Nitrogen Fixing Bacteria such as Azotobacter.
Q: Which State Government has approved one per cent reservation for orphans in government jobs under general category? 1324 05b5cc6b3e4d2b4197774d446
5b5cc6b3e4d2b4197774d446- 1Haryanafalse
- 2Maharashtratrue
- 3Madhya Pradeshfalse
- 4Uttar Pradeshfalse
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Answer : 2. "Maharashtra"
Explanation :
Answer: B) Maharashtra Explanation:
Q: What is the IUPAC name for the following compound? H3C-C≡C-H 2752 05b5cc6b3e4d2b4197774d44b
5b5cc6b3e4d2b4197774d44b- 1Acetylenefalse
- 2Methyl acetylenetrue
- 3Butanolfalse
- 4Decanoic Acidfalse
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Answer : 2. "Methyl acetylene"
Explanation :
Answer: B) Methyl acetylene Explanation: The IUPAC name of the compound is Methyl Acetylene or Propyne.
Q: Manisha went to shop with certain amount, with which she can buy 50 Chacobar or 40 Fivestar. She uses 10% amount for petrol and out of the remaining balance, she purchases 20 Fivestar and some Chacobar. Find the number of Chacobar she can buy? 1359 05b5cc6b3e4d2b4197774d441
5b5cc6b3e4d2b4197774d441- 120true
- 224false
- 326false
- 428false
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Answer : 1. "20"
Explanation :
Answer: A) 20 Explanation: Let the total amount be 200 {L.C.M of 40 and 50} Chacobar C.P. = 200/50 = 4 Fivestar C.P = 200/40 = 5 Remaining Money after petrol = [200 - 200×10%] = 180 Remaining money after buying fivestars = [180 - 20×5] = 80 So number of Chacobar she can buy = 80/4 = 20
Q: Express 3/8 and 1/10 as a Decimals? 1820 05b5cc6b3e4d2b4197774d437
5b5cc6b3e4d2b4197774d437- 11.375 & 1false
- 20.375 & 1false
- 313.75 & 1.1false
- 40.375 & 0.1true
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Answer : 4. "0.375 & 0.1"
Explanation :
Answer: D) 0.375 & 0.1 Explanation: 3/8 as a Decimal : In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple. Now to make 8 into 1000, we multiply numerator and denominator with 125 => 3 x 1258 x 125 = 3751000 = 0.375 1/10 as a Decimal : 1 divided into 10 parts of each 0.1. Therefore, 3/8 = 0.375 and 1/10 = 0.1 in decimals.
Q: Write 0.125 as a percent %? 1626 05b5cc6b3e4d2b4197774d42d
5b5cc6b3e4d2b4197774d42d- 112%false
- 212.5%true
- 313%false
- 413.5%false
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Answer : 2. "12.5%"
Explanation :
Answer: B) 12.5% Explanation: Here to convert 0.125 into % First convert to fractio Multiply and divide by 1000 => 0.125 x 10001000 = 1251000 = 18 => Now, in percentage18 x 100 = 12.5%