IIT JEE Practice Question and Answer
8Q: Which solution has the highest pH? 1435 05b5cc6a2e4d2b4197774cb8a
5b5cc6a2e4d2b4197774cb8a- 150.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)true
- 250.0 mL 0.0500 M sodium hydroxide, NaOH (aq)false
- 350.0 mL 0.0500 M nitric acid, HNO3 (aq)false
- 450.0 mL 0.0500 M nitrous acid, HNO2 (aq)false
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Answer : 1. "50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)"
Explanation :
Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) Explanation: 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value. Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH. Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.
Q: Pen is to poet as needle is to 5673 05b5cc6a2e4d2b4197774cb84
5b5cc6a2e4d2b4197774cb84- 1Sewingfalse
- 2Threadfalse
- 3Tailortrue
- 4Buttonfalse
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Answer : 3. "Tailor"
Explanation :
Answer: C) Tailor Explanation: Here Pen is a tool which is used to write and poet uses it. Then, the needle is a tool which is used to stitch and it is used by Tailor. Except tailor, none of the other options is a person to use it. Hence, Pen : Poet :: Needle : Tailor
Q: The absorption of ink by blotting paper involves 2501 05b5cc6a2e4d2b4197774cb7f
5b5cc6a2e4d2b4197774cb7f- 1viscosity of inkfalse
- 2diffusion of ink through the blottingfalse
- 3capillary action phenomenontrue
- 4siphon actionfalse
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Answer : 3. "capillary action phenomenon"
Explanation :
Answer: C) capillary action phenomenon Explanation: The absorption of ink by blotting paper involves capillary action phenomenon because the blotting paper is a thin and a smooth paper which allows a little thicker liquids like ink to absorb.
Q: Bad loans in banking terminology are generally known as 3761 05b5cc6a2e4d2b4197774cb75
5b5cc6a2e4d2b4197774cb75- 1NPA'strue
- 2Prime loansfalse
- 3BPO'sfalse
- 4Prime Assetsfalse
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Answer : 1. "NPA's"
Explanation :
Answer: A) NPA's Explanation: Bad loans in banking terminology are generally known as NPA's. A Non - performing Asset (NPA) is defined as a credit facility in respect of which the interest and installment of principal have remained 'past due' for a specified period of time.
Q: What is the first thing that alcohol effects? 1340 05b5cc6a2e4d2b4197774cb7a
5b5cc6a2e4d2b4197774cb7a- 1Judgementtrue
- 2Speechfalse
- 3Visionfalse
- 4Balancefalse
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Answer : 1. "Judgement"
Explanation :
Answer: A) Judgement Explanation: Alcohol impairs your judgement. Judgement is in your brain stupid and it impairs your brain.
Q: The Hardest Logic Puzzle Ever? If a giraffe has two eyes, a monkey has two eyes, and an elephant has two eyes, how many eyes do we have? 7350 05b5cc6a2e4d2b4197774cb6b
5b5cc6a2e4d2b4197774cb6b- 13false
- 24true
- 31false
- 42false
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Answer : 2. "4"
Explanation :
Answer: B) 4 Explanation: 4 eyes. Here in the question, it is asked how many Eyes We have so that means here the person who has asked the question is also including the person who is suppose to give the answer. In a clear understanding, the Conversation is happening between 2 people 1st who asked the question and 2nd to whom it has been asked, which means there are 4 eyes.
Q: If the price of a commodity is decreased by 20% and its consumption is increased by 10%, what will be the increase or decrease in the expenditure on the commodity? 1402 05b5cc6a2e4d2b4197774cb70
5b5cc6a2e4d2b4197774cb70- 1increase 12%false
- 2decrease 12%true
- 3increase 16%false
- 4decrease 16%false
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Answer : 2. "decrease 12%"
Explanation :
Answer: B) decrease 12% Explanation: Given the price of a commodity is decreased by p = 20% And its consumption is increased by q = 10% Now, required increase or decrease in the expenditure on the commodity can be p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%. Hence, decrease in the expenditure = 12%
Q: What led to the beginning of the Renaissance? 1850 05b5cc6a2e4d2b4197774cb65
5b5cc6a2e4d2b4197774cb65- Show AnswerHide Answer
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Answer :
Explanation :
The development in arts and letters known as the Renaissance(rebirth) was a revived interest in classical learning and culture in the 1300's and the 1400's in Italy, but later spread to other parts of Europe. The Renaissance involved new thought because it was a secular movement. During the feudal period, the Catholic Church was the center of learning; in fact, the medieval scholar had been concerned with the harnessing of reason in the defense and service of religion. But, with the end of feudalism and increased trading outside of Europe, new ideas emerged and the Renaissance scholar became more concerned with the secular side of things. Furthermore, poets and philosophers concerned themselves with the natural world, rather than theology. One reason for the scholarship in Italy is the fact that Greek scholars emigrated to Italy after the invasion of the Ottoman Turks who captured Constantinople. These scholars brought with them classical texts and manuscripts, which helped to revive interest in classical learning and arts. Along with the Greek scholars, Italian scholar Petrarch is felt to be a major impetus to the rebirth of culture and learning. Having a passionate interest in the rediscovery of lost Roman manuscripts and a strong belief in the power of ancient thought to civilize, his ideas certainly complemented those who valued classical learning.

