IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What it goes up but never comes down? 1285 05b5cc6b4e4d2b4197774d4fc
5b5cc6b4e4d2b4197774d4fc- 1Umbrellafalse
- 2Hot air balloonfalse
- 3Agetrue
- 4Rocketfalse
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उत्तर : 3. "Age"
व्याख्या :
Answer: C) Age Explanation: Yeah, its your AGE which always goes up but sadly never comes down.
प्र: Lipids are insoluble in water because lipids are 1284 05b5cc6a9e4d2b4197774cecf
5b5cc6a9e4d2b4197774cecf- 1Hydrophobictrue
- 2Zwitter ionsfalse
- 3Hydrophylicfalse
- 4Neutralfalse
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उत्तर : 1. "Hydrophobic"
व्याख्या :
Answer: A) Hydrophobic Explanation: Lipids are soluble in solvents of low polarity, which simply means that lipids are soluble in nonpolar solvents. This solubility property is a result of the large nonpolar regions that are indicative of the lipid molecule.
प्र: In the following question four words are given of which two words are most nearly the same or opposite in meaning. Find the two words. ( 1283 05b5cc6c4e4d2b4197774dc9a
5b5cc6c4e4d2b4197774dc9a- 1Soft (false
- 2Fatiguing (true
- 3Discordant (false
- 4Forcefalse
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उत्तर : 2. "Fatiguing ("
व्याख्या :
Answer: B) A-C Explanation: Meaning of Discordant = Harsh That implies Harsh opposite is soft.
प्र: The process of bones increasing in width is known as 1283 05b5cc672e4d2b4197774c0c3
5b5cc672e4d2b4197774c0c3- 1appositional growthtrue
- 2closing of the epiphyseal platefalse
- 3concentric growthfalse
- 4long bones reaching adult length and widthfalse
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उत्तर : 1. "appositional growth"
व्याख्या :
Answer: A) appositional growth Explanation:
प्र: abcdefghijklmnopqrstuvwxyz Riddle What sentence contains all abcdefghijklmnopqrstuvwxyz? 1282 05b5cc6a8e4d2b4197774ce85
5b5cc6a8e4d2b4197774ce85- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
The Quick Brown Fox Jumped Over The Lazy Dog is the sentence which contains all 26 alphabets i.e, from a to z.
प्र: Numismatics is the study of 1282 05b5cc6a9e4d2b4197774cee0
5b5cc6a9e4d2b4197774cee0- 1Numbersfalse
- 2Coinstrue
- 3Stampsfalse
- 4Nonefalse
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उत्तर : 2. "Coins"
व्याख्या :
Answer: B) Coins Explanation: Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects.
प्र: What are the Multiples of 18? 1282 05b5cc6b8e4d2b4197774d648
5b5cc6b8e4d2b4197774d648- 1144false
- 272false
- 3306false
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: The Multiples of 18 are 18, 36, 54, 72, 90, 108, 126, .... Multiples of 18 are nothing but numbers which are divisible by 18 leaving remainder 0. An infinite number of multiples of 18 can be achieved by adding 18 to each subsequent multiple.
प्र: Intermolecular forces in HCl are 1281 05b5cc658e4d2b4197774bd9e
5b5cc658e4d2b4197774bd9e- 1Hydrogen bondingfalse
- 2Dipole-dipolefalse
- 3Dispersion forcefalse
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: Intermolecular forces : The forces of attraction present in between the molecules or atoms or compounds is termed as intermolecular forces. The molecule HCl is composed of hydrogen and chlorine atom. There is high difference in electronegativities therefore, it is polar in nature. The H end of HCl is permanently slightly positive charge. The Cl end of HCl has a permanent slight negative charge. the "H" in one molecule is attracted to the "Cl" in a neighbor. The intermolecular force is weak compared to a covalent bond. But this dipole-dipole interaction is one of the stronger intermolecular attractions. It also has hydrogen bonding and dispersion forces. Dispersion forces are the weakest forces which are present in between all molecules or atoms.Hydrogen bonds are present in molecules having at least one H-A bond where A is the strong electronegative atom (mainly F, Cl and N).

