IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: ATP is a compound that is synthesized when 5816 0

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    digestive enzymes break amino acids into smaller pieces
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    energy stored in nitrogen is released froming amino acids
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    energy is stored in chemical bonds is released during cellular respiration
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    chemical bonds between carbon atoms are formed by during photo synthesis
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उत्तर : 3. "energy is stored in chemical bonds is released during cellular respiration"
व्याख्या :

Answer: C) energy is stored in chemical bonds is released during cellular respiration Explanation:

प्र: The process of collecting, organizing and analyzing data is called 5811 0

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    Statistics
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    Data collection
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    Probability
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    Systematic evaluation
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उत्तर : 1. "Statistics"
व्याख्या :

Answer: A) Statistics Explanation: The process of collecting, organizing and analyzing data is called Statistics.

प्र: Find the missing term in the following series ? 10000, 11000, 9900, 10890, ?, 10781 5809 0

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    10423
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    9801
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    10241
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    9712
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उत्तर : 2. "9801"
व्याख्या :

Answer: B) 9801 Explanation: Clearly, alternatively we add and subtract 10% of a term to obtain the next term of the series.Thus, 10000 + (10% of 10000)= 11000; 11000 - (10% of 11000) = 9900; 9900 + (10% of 9900)  = 10890; 10890 - (10% of 10890) = 9801. 9801 + (10% of 9801)  = 9801+980 = 10781.So, missing term = 10890- (10% of 10890)= 9801.

प्र: If A + B = 2C and C + D = 2A, then 5799 0

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    A + C = B + D
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    A + C = 2D
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    A + D = B + C
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    A + C = 2B
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उत्तर : 1. "A + C = B + D"
व्याख्या :

Answer: A) A + C = B + D Explanation: Given,   A + B = 2C ----(i)   C + D = 2A----(ii)   Adding (i) and (ii) we get : A + B + C + D = 2C + 2A   =>  B + D = A + C

प्र: Thunder is to Lightning as Grape is to 5788 0

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    Wine
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    Soil
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    Seed
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    Water
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उत्तर : 3. "Seed"
व्याख्या :

Answer: C) Seed Explanation: Lightning produces thunder just as a seed will eventually produce a grape.

प्र: Which of the following is an abnormal constituent of urine? 5736 0

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    Creatinine
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    Uric acid
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    Glucose
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    Urea
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उत्तर : 3. "Glucose"
व्याख्या :

Answer: C) Glucose Explanation: Normally, urine contains water and wastes, such as urea, uric acid, creatinine, and some ions. However, some of these substances may be abnormally elevated, which usually indicates that something is wrong with the body.   The following are some of the abnormal constituents of urine:: Albumin Bilirubin Glucose Ketone bodies Blood Microbes White blood cells

प्र: Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue? 5715 0

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    41
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    40
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    28
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    27
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उत्तर : 3. "28"
व्याख्या :

Answer: C) 28 Explanation: Three persons A, B, C can be arranged in a queue in six different ways, ie ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements, ie CBA and CAB.   We may consider the two cases as under: Case I:  ←3C↔8B↔5A→21   Clearly, number of persons in the queue = (3+1+8+1+5+1+21=) 40   Case II:  ←3C A↔5B   Number of persons between A and C                     = (8 - 6) = 2    ∵[C↔8B A→21B]   Clearly number of persons in the queue = (3+1+2+1+21) = 28   Now, 28 < 40. So, 28 is the minimum number of persons in the queue.

प्र: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 5703 0

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    80 deg
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    160 deg
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    140 deg
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    135 deg
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उत्तर : 1. "80 deg"
व्याख्या :

Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°

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