Practice Question and Answer
8Q: Which of the following rivers have almost the same point of emerging ? 2239 15b5cc6d9e4d2b4197774e834
5b5cc6d9e4d2b4197774e834- 1Tapi and Beasfalse
- 2Brahmaputra and Gangafalse
- 3Indus and Gangafalse
- 4Brahmaputra and Industrue
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Answer : 4. "Brahmaputra and Indus"
Explanation :
Answer: D) Brahmaputra and Indus Explanation:
Q: Grand Central Terminal, Park Avenue, Nw York is the world's 2239 05c4eaef6b73ca5698f33e2c2
5c4eaef6b73ca5698f33e2c2- 1highest reailway stationfalse
- 2Longest railway stationfalse
- 3Largest railway stationtrue
- 4None of the abovefalse
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Answer : 3. "Largest railway station"
Q: What is the heaviest noble gas? 2238 05b5cc69ce4d2b4197774c820
5b5cc69ce4d2b4197774c820- 1kryptonfalse
- 2radontrue
- 3heliumfalse
- 4xenonfalse
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Answer : 2. "radon"
Explanation :
Answer: B) radon Explanation: The seven elements — helium, neon, argon, krypton, xenon, radon, and oganesson of Group 18 of the periodic table are Noble or Inert gases. Radon is the heaviest and Helium is the lightest gases of the noble gases.
Q: Select the option that will come next in the given series.
2238 05f3e01e354900c5349dc30cb
5f3e01e354900c5349dc30cb- 1false
- 2false
- 3false
- 4true
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Answer : 4. "
"
Q: Which of the following is the most stable carbocation? 2238 05b5cc69ee4d2b4197774c9a9
5b5cc69ee4d2b4197774c9a9- 14false
- 23false
- 32true
- 41false
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Answer : 3. "2"
Explanation :
Answer: C) 2 Explanation: Here the most stable carbocation is the option (2). Carbocations are always hungry for electrons. The stability of carbocations increases from primary to secondary to tertiary. Here, option (c) shows the most stable carbocation because it can easily withdraw electrons from two other carbon atoms and the more electronegative oxygen atom. Carbocation stability depends on hyperconjugation. The tertiary carbocation is stabilized by electron releasing inductive effect.
Q: If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is :
2238 05f23ec4e3494c5438aa834dc
5f23ec4e3494c5438aa834dc- 14 hrtrue
- 27 hrfalse
- 32 hrfalse
- 43 hrfalse
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Answer : 1. "4 hr"
Q: Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.
Statements:
All scientists working in Japan are talented.
Some Chinese scientists are working in Japan.
Conclusions:
I. No Chinese scientist is talented.
II. Some talented Chinese scientists are working in Japan.
III. All talented scientists are Japanese.
IV. Some Chinese scientists are talented.
2238 160f56acf16158a5eeda06f62
60f56acf16158a5eeda06f62All scientists working in Japan are talented.
Some Chinese scientists are working in Japan.
Conclusions:
I. No Chinese scientist is talented.
II. Some talented Chinese scientists are working in Japan.
III. All talented scientists are Japanese.
IV. Some Chinese scientists are talented.
- 1Only conclusion III and IV follow.false
- 2Only conclusion II and IV follow.true
- 3Only conclusion I follows.false
- 4Only conclusion II follows.false
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Answer : 2. "Only conclusion II and IV follow."
Q: Demand side market failures occur when 2238 05b5cc6a6e4d2b4197774cdb6
5b5cc6a6e4d2b4197774cdb6- 1supply curves do not reflect the full cost of producing a good or servicesfalse
- 2demand curves do not reflect consumer’s full willingness to pay for goods or servicestrue
- 3government imposes tax on a good or a servicefalse
- 4a good or service is not produced because no one demands itfalse
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Answer : 2. "demand curves do not reflect consumer’s full willingness to pay for goods or services"
Explanation :
Answer: B) demand curves do not reflect consumer’s full willingness to pay for goods or services Explanation: Market failure arises because it is not possible for the market to correctly weight cost and benefits in a situation in which some of the cost is completely unaccounted. Demand-side market failures happen when demand curves do not reflect consumer’s full willingness to pay for goods or services. Supply-side market failures occur when supply curves do not reflect the full cost of producing a good or services.