IIT JEE Practice Question and Answer
8Q: who was the first non-human to win an Oscar? 2057 05b5cc6bbe4d2b4197774d816
5b5cc6bbe4d2b4197774d816- 1Pussycatfalse
- 2Mickey Mousetrue
- 3Ninjafalse
- 4Benderfalse
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Answer : 2. "Mickey Mouse"
Explanation :
Answer: B) Mickey Mouse Explanation: Mickey Mouse was the first non-human to win an Oscar in 1932. Walt Disney won the first of his many Oscars for the creation of Mickey Mouse.
Q: 1397 x 1397 = ? Here what replaces '?' 2053 05b5cc6bbe4d2b4197774d853
5b5cc6bbe4d2b4197774d853- 11951609true
- 21821504false
- 32031489false
- 41847879false
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Answer : 1. "1951609"
Explanation :
Answer: A) 1951609 Explanation: 1397 x 1397
Q: Why is Golden Rice pale yellow in color? 2052 05b5cc6b9e4d2b4197774d6c6
5b5cc6b9e4d2b4197774d6c6- 1Rich in Beta-Carotenetrue
- 2Rich in Phycobilinsfalse
- 3Rich in Chlorophyllfalse
- 4Nonefalse
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Answer : 1. "Rich in Beta-Carotene"
Explanation :
Answer: A) Rich in Beta-Carotene Explanation: Golden Rice (Oryza sativa) denotes a genetically modified rice capable of biosynthesizing and accumulating β-carotene (provitamin A) in the endosperm, yielding a characteristic yellow color in the polished grains. Golden rice was developed to help cope with vitamin A deficiency, a problem that prevails in developing countries, affecting millions (Underwood, 2000; UNICEF, 2000). Vitamin A deficiency causes mortality and growth retardation in children and frequently impairs vision, leading to blindness. It also contributes indirectly to anemia by interfering with iron bioavailability. The endosperm of Golden Rice (Oryza sativa) is yellow due to the accumulation of β-carotene (provitamin A) and xanthophylls. The product of the two carotenoid biosynthesis transgenes used in Golden Rice results in Pale Yellow color.
Q: A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is ? 2049 05b5cc720e4d2b4197774f640
5b5cc720e4d2b4197774f640- 111false
- 27false
- 39true
- 413false
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Answer : 3. "9"
Explanation :
Answer: C) 9 Explanation: Here the number of cogs is inveresly proportional to number of revolutions => More cogs less revolution=> 6 : 14 :: x : 21=> (21x6)/14 = 9
Q: Find the next number in the number series? 1, 4, 12, 32, ? 2049 05b5cc6a8e4d2b4197774ce61
5b5cc6a8e4d2b4197774ce61- 180true
- 2100false
- 3192false
- 4169false
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Answer : 1. "80"
Explanation :
Answer: A) 80 Explanation: Next number of the sequence 1, 4, 12, 32,... 1 = 2 x 20 4 = 2 x 21 12 = 3 x 22 32 = 4 x 23 80 = 5 x 24.
Q: Permanent Hardness of water can be removed by adding 2048 05b5cc6a4e4d2b4197774cc8b
5b5cc6a4e4d2b4197774cc8b- 1Bleaching powderfalse
- 2Chlorinefalse
- 3Wasshing sodatrue
- 4Potassium permanganatefalse
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Answer : 3. "Wasshing soda"
Explanation :
Answer: C) Wasshing soda Explanation: Hardness can be removed by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column. Hardness in water is caused by dissolved magnesium ions and calcium ions. These can get into the water when it comes into contact with limestone and other rocks that contain calcium compounds. This can happen, for example, when rainwater flows over these rocks on its way to a reservoir. Hardness in water is of two types. They are : 1. Temporary hardness 2. Permanent hardness 1. Temporary hardness:: Temporary hardness is caused by dissolved calcium hydrogen carbonate. 2. Permanent hardness:: Permanent hardness is caused by dissolved calcium sulfate. Unlike temporary hardness, it is not removed by boiling the water.
Q: Complete the missing Number Puzzle? 2048 05b5cc60ae4d2b4197774b595
5b5cc60ae4d2b4197774b595- 140false
- 252false
- 389false
- 496true
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Answer : 4. "96"
Explanation :
Answer: D) 96 Explanation: Here in the given number puzzle, the given numbers follows a pattern that 1 + 4 = 5 => 1 x 4 + 1 = 4 + 1 = 5 2 + 5 = 12 => 2 x 5 + 2 = 10 + 2 = 12 3 + 6 = 21 => 3 x 6 + 3 = 18 + 3 = 21 Similarly, 8 + 11 = 96 => 8 x 11 + 8 = 88 + 8 = 96 Hence, the missing number in the given number puzzle is 96.
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Answer :
Explanation :
1001 A N means 1001 Arabian Nights. These are same as 12 S of the Z, 64 S on a C, 19 C in CB, 8 S on SS, ...

