IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: What is the IUPAC name of [Co (NH₃)₄Cl₂ ]Cl? 1745 0

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    Tetra-ammine dichloro cobalt (III) chloride
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    Tetra-ammine trichloro cobalt (III)
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    Tri-ammine dichloro cobalt (III) chloride
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    Tetra-ammine dichloro cobalt
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उत्तर : 1. "Tetra-ammine dichloro cobalt (III) chloride"
व्याख्या :

Answer: A) Tetra-ammine dichloro cobalt (III) chloride Explanation: The IUPAC nomenclature in organic chemistry is a systematic method that is used to name organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).   The IUPAC name of the given complex [Co (NH₃)₄Cl₂ ]Cl is - Tetra-ammine dichloro cobalt (III) chloride.   The complex [Co (NH₃)₄ Cl₂ ] Cl ionizes an aqueous solution to furnish the chloride ion Cl⁻ and [Co (NH₃)₄ Cl₂ ] ⁺.

प्र: photosynthesis takes place faster in 1744 0

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    darkness
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    red light
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    white light
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    yellow light
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उत्तर : 3. "white light"
व्याख्या :

Answer: C) white light Explanation: As far as the rate of photosynthesis is concerned, it is fastest in white light making the rate of photosynthesis maximum. After White, We Have Violet Light Where Photosynthesis Occur To A Higher Extent as It Has The Shortest Wavelength Hence Has The Max Energy.   So The Order Is  ::  white>violet>blue.

प्र: Who is the Indian writer of Mirror Image Shreemadbhagwad Gita? 1744 0

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उत्तर :
व्याख्या :

Piyush Goel

प्र: Animal migration on savannas is often governed by 1744 0

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    Rainfall
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    Distance
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    Reproduction
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    Fire
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उत्तर : 1. "Rainfall"
व्याख्या :

Answer: A) Rainfall Explanation: Savannas are home to a wide diversity of animals. Many animals of the savanna migrate throughout the year, searching for food and water. Many of the droughts are seasonal and hit one area before another, so animals are constantly following the rains.   Hence, Rain fall is what often governs animal migration on savannas.

प्र: What is the full form of "RADAR" ? 1744 0

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    Radio Detecting and Ranging
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    Region Device and Ranging
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    Radio Detect and Rangs
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    Radio Device and Ranging
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उत्तर : 1. "Radio Detecting and Ranging"
व्याख्या :

Answer: A) Radio Detecting and Ranging Explanation:

प्र: A six-digit number is formed by repeating a three-digit number; for example, 404404 or 415415 etc. Any number of this form is always exactly divisible by 1744 0

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    101
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    901
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    1001
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    789
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उत्तर : 3. "1001"
व्याख्या :

Answer: C) 1001 Explanation: Here by trial and error method, we can obseve that 404404 = 404 x 1001; 415415 = 415 x 1001, etc. So, any number of this form is divisible by 1001.

प्र: Which of the Phrases (1), (2), (3) and (4) given below should replace the phrases printed in bold in the sentence to make it grammatically correct.    They claim that their employees are highly committing and disciplined. 1744 0

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    Have been highly committed
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    Have high commitments
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    Are highly committed
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    No correction required
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उत्तर : 3. "Are highly committed"
व्याख्या :

Answer: C) Are highly committed Explanation: As per the rule of adverb, the adverb is followed by the third form of verb.

प्र: What does the APR on a credit card determine? 1743 0

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    fee paid by bank for deposits
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    fee paid for borrowing money
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    Both A & B
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    None of the above
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उत्तर : 2. "fee paid for borrowing money"
व्याख्या :

Answer: B) fee paid for borrowing money Explanation: A credit card's interest rate is the price you pay for borrowing money. For credit cards, the interest rates are typically stated as a yearly rate. This is called the annual percentage rate (APR). On most cards, you can avoid paying interest on purchases if you pay your balance in full each month by the due date. Your APR is expressed in terms of a year, but credit card companies use it to calculate charges over your monthly statement period.

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