IIT JEE Practice Question and Answer
8Q: Name the two main types of Fermentation? 2067 05b5cc696e4d2b4197774c56f
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Answer :
Explanation :
Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat. The two most common types of fermentation are (1) alcoholic fermentation (and) (2) lactic acid fermentation. (1) Alcoholic fermentation : the type of fermentation in which ethyl alcohol is the main end product .This is very common in yeast (unicellular fungus) and also seen in some bacteria. Yeast cells release enzymes called zymase complex which bring about the fermentation. The reactions are similar to anaerobic respiration. (2) Lactic acid fermentation : The type of fermentation in which lactic acid is the end product. It is carried out by some bacteria (e.g. lactic acid bacteria), and also by animals (muscle glycolysis in animals, under oxygen deficiency, results in the formation of lactic acid this is whay we experience in muscle cramps, or "Charley horse").
Q: How many Lok Sabha seats belong to Rajasthan? 2064 05b5cc6a6e4d2b4197774cd22
5b5cc6a6e4d2b4197774cd22- 125true
- 217false
- 348false
- 42false
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Answer : 1. "25"
Explanation :
Answer: A) 25 Explanation: The maximum size of the Lok Sabha as outlined in the Constitution of India is 552 members made up of up to 530 members representing people of the states of India and up to 20 members representing people from the Union Territories on the basis of their population and 2 Anglo-Indians are nominated by President. The number of Parliamentary Seats for the States : Andhra Pradesh & Rajasthan - Each 25 Maharashtra - 48 Telangana - 17 Arunachal Pradesh, Bihar, Manipur, Meghalaya, Tripura - Each 02 Uttar Pradesh has the highest with - 80
Q: Two bus tickets from city K to L and three tickets from city K to M cost Rs. 77, but three tickets from city K to L and two tickets from city K to M cost Rs. 73. What are the fares for cities L and M from K ? 2064 05b5cc720e4d2b4197774f5e0
5b5cc720e4d2b4197774f5e0- 1Rs. 13 and Rs. 17true
- 2Rs. 17 and Rs. 19false
- 3Rs. 23 and Rs. 17false
- 4Rs. 13 and Rs. 19false
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Answer : 1. "Rs. 13 and Rs. 17"
Explanation :
Answer: A) Rs. 13 and Rs. 17 Explanation: If fares for cities L and M from K are x and y respectively, then 2x + 3y = 77 or 6x + 9y = 231...(1)3x + 2y = 73 or 6x + 4y = 146...(2) subtracting 2 from 1, we get 5y = 85 y = Rs. 17 => x = Rs. 13
Q: Which of the following sports is most popular worldwide? 2064 05b5cc64de4d2b4197774bcc1
5b5cc64de4d2b4197774bcc1- 1Footballtrue
- 2Hockeyfalse
- 3Cricketfalse
- 4Tennisfalse
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Answer : 1. "Football"
Explanation :
Answer: A) Football Explanation: Top five most popular games world wide are : Game name - Estimated fans - Popular Regions 1. Soccer / Football - 3.5 Billion - Europe, Africa, Asia, America 2. Cricket - 2.5 Billion - Asia, Australia, UK 3. Basketball - 2.2 Billion - US, Canada, China and Philippines 4. Field Hockey - 2 Billion - Europe, Africa, Asia, Australia 5. Tennis - 1 Billion - Europe, Americas, and Asia.
Q: A woman’s voice is shriller than a man’s voice due to 2064 05b5cc6a6e4d2b4197774cd56
5b5cc6a6e4d2b4197774cd56- 1weak vocal chordsfalse
- 2lower frequencyfalse
- 3higher frequencytrue
- 4higher amplitudefalse
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Answer : 3. "higher frequency"
Explanation :
Answer: C) higher frequency Explanation: As the frequency of sound is higher, women have shriller voices than men. The shrillness or pitch of a sound is determined by its frequency. The higher the pitch shriller the voice. As the sounds produced by vocal cords of women are higher than men so women have shriller voices than men. Because their vocal cord is of smaller size. As their vocal cord is more stretched than men's.
Q: Munna and Chinna are partners in a firm out of which Munna is sleeping partner and Chinna is working partner. Munna invests Rs. 1,40,000 and Chinna invests Rs. 80,000. Chinna receives 14.5% of profit for managing the business and the rest is shared between both in ratio of their investments. Munna's share in the profit of Rs. 19600 is ? 2064 05b5cc6cae4d2b4197774e04a
5b5cc6cae4d2b4197774e04a- 1Rs. 9580.25false
- 2Rs. 10600false
- 3Rs. 10664.15true
- 4Rs. 11060.48false
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Answer : 3. "Rs. 10664.15"
Explanation :
Answer: C) Rs. 10664.15 Explanation: Profit received by Chinna as working partner = 14.5% of Rs. 19600 = 14.5x19600/100 = Rs. 2842 Balance in profit = 19600-2842 = Rs. 16758 Ratio of investment of Chinna & Munna = 80,000 : 1,40,000 = 4 : 7 Hence share of Chinna in investment = 4x16758/100 = Rs. 6093.85 Therefore, Share of Munna = 19600 - 2842 - 6093.85 = Rs. 10664.15
Q: Where is it legal to tie up your boat? 2062 05b5cc607e4d2b4197774b549
5b5cc607e4d2b4197774b549- 1to a lighted buoyfalse
- 2to a mooring buoytrue
- 3to a non-lateral markerfalse
- 4to a safe water markerfalse
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Answer : 2. "to a mooring buoy"
Explanation :
Answer: B) to a mooring buoy Explanation: Mooring buoy are white with a blue horizontal band. They usually are placed in marinas and other areas where boats are allowed to anchor. These are the only buoys you may tie up to legally.
Q: Which day is observed as Rashtriya Ekta Diwas every year in India? 2062 05b5cc6bfe4d2b4197774da8d
5b5cc6bfe4d2b4197774da8d- 131st Julyfalse
- 231st Marchfalse
- 331st Januaryfalse
- 431st Octobertrue
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Answer : 4. "31st October"
Explanation :
Answer: D) 31st October Explanation:

