IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What is true about certificates of deposit? 1179 05b5cc63de4d2b4197774bb00
5b5cc63de4d2b4197774bb00- 1the money has to remain in the account for a specified period of timetrue
- 2they are the most liquid account availablefalse
- 3they offer lower interest rates than savings accountsfalse
- 4All the abovefalse
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उत्तर : 1. "the money has to remain in the account for a specified period of time"
व्याख्या :
Answer: A) the money has to remain in the account for a specified period of time Explanation: A certificate of deposit (CD) is a savings certificate with a fixed maturity date, specified fixed interest rate and can be issued in any denomination aside from minimum investment requirements. CD's are generally issued by commercial banks
प्र: One boat is overtaking another, which boat should stand on? 1656 05b5cc63de4d2b4197774baf8
5b5cc63de4d2b4197774baf8- उत्तर देखें
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उत्तर :
व्याख्या :
The boat which is overtaken must give way to the boat which is overtaking and should stand on until it is completely overtaken.
प्र: What is the conjugate base of H2O? 1107 05b5cc63de4d2b4197774baf9
5b5cc63de4d2b4197774baf9- 1NH3+false
- 2OH-true
- 3H2Ofalse
- 4All the abovefalse
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उत्तर : 2. "OH-"
व्याख्या :
Answer: B) OH- Explanation: A conjugate acid, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it. On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid. Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic. Represented as the following chemical reaction: Acid + Base ⇌ Conjugate Base + Conjugate Acid The water molecule is the conjugate acid of the hydroxide ion after the latter received the hydrogen proton donated by ammonium. On the other hand, ammonia is the conjugate base for the acid ammonium after ammonium has donated a hydrogen ion towards the production of the water molecule. We can also refer to OH- as a conjugate base of H2O, since the water molecule donates a proton towards the production of NH+4 in the reverse reaction, which is the predominating process in nature due to the strength of the base NH3 over the hydroxide ion.
प्र: What happens during the process of translation? 1375 05b5cc63de4d2b4197774baee
5b5cc63de4d2b4197774baee- 1Transfer RNA is made from messenger RNAfalse
- 2Copies of DNA molecules are madefalse
- 3The cell uses information from messenger RNA to produce proteinstrue
- 4Messenger RNA is made from DNAfalse
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उत्तर : 3. "The cell uses information from messenger RNA to produce proteins"
व्याख्या :
Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins. In short, during the process of translation source language text is conveyed to destination language.
प्र: 5x - 6 = 3x - 8 Solve the above equation. 1177 05b5cc63de4d2b4197774baf3
5b5cc63de4d2b4197774baf3- 12false
- 2-1true
- 3-2false
- 41false
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उत्तर : 2. "-1"
व्याख्या :
Answer: B) -1 Explanation: Given 5x - 6 = 3x - 8 5x - 3x = -8 + 6 2x = -2 => x = -1.
प्र: Which sentence describes a legislative referendum? 10170 05b5cc63de4d2b4197774bae9
5b5cc63de4d2b4197774bae9- 1Voters approve a measure that is nonbinding and can be ignored.false
- 2Voters approve or reject a proposal without the legislature.false
- 3Voters sign a petition to gather support for an issue.false
- 4A legislature passes a bill that must be approved by voters.true
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उत्तर : 4. "A legislature passes a bill that must be approved by voters."
व्याख्या :
Answer: D) A legislature passes a bill that must be approved by voters. Explanation:
प्र: What has four wheels and flies? 1771 05b5cc63de4d2b4197774bae8
5b5cc63de4d2b4197774bae8- उत्तर देखें
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उत्तर :
व्याख्या :
Garbage truck. It’s true, a garbage truck has 4 wheels and lots of flies because flies like garbage. Here flies means insects like houseflies, mosquitoes, ... It doesn't mean that it flies in the air.
प्र: The more you take, the more you leave behind. What is that? 1411 05b5cc63de4d2b4197774bae3
5b5cc63de4d2b4197774bae3- 1Picturesfalse
- 2Holefalse
- 3Clothesfalse
- 4Footstepstrue
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उत्तर : 4. "Footsteps"
व्याख्या :
Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.