CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: In a compound, chemical energy is contained in the 1734 05b5cc60ae4d2b4197774b57d
5b5cc60ae4d2b4197774b57d- 1bondstrue
- 2movement of the electronsfalse
- 3unbonded electronsfalse
- 4nuclei of the atomsfalse
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उत्तर : 1. "bonds"
व्याख्या :
Answer: A) bonds Explanation: chemical energy is contained in the chemical bonds between the reactants in the chemical compounds.
प्र: An express train takes 4 seconds to enter tunnel which is 1 km long. If it is traveling at 108 km an hour, how long will it take to pass completely through the tunnel ? 1734 05b5cc73ae4d2b4197774f8ec
5b5cc73ae4d2b4197774f8ec- 133 secfalse
- 237.33 sectrue
- 336.43 secfalse
- 432 secfalse
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उत्तर : 2. "37.33 sec"
व्याख्या :
Answer: B) 37.33 sec Explanation: Speed = 108 km/hrenter a tunnel,, means that the train covers a distance equal to its own lengthso (108 x 5/18) = x/4 where x= length of trainhence x = 120 mtrsto pass completely train has to travel a distance = (x + tunnel length) that is 1120 mtrs.so (1120/t) = (108x5/18)t = 37.33 sec
प्र: What is the difference in the shares of profit between P and Q in a joint business at the end of one year ? a. P Invested Rs. 80,000 and withdrew Rs. 20,000 after 6 months. b. Q joined four months after the start of business. c. Q's amount was 80% of P's amount during the last six months. 1734 05b5cc70be4d2b4197774f2dc
5b5cc70be4d2b4197774f2dc- 1Only afalse
- 2Only cfalse
- 3Both a & bfalse
- 4Data is not sufficienttrue
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उत्तर : 4. "Data is not sufficient"
व्याख्या :
Answer: D) Data is not sufficient Explanation: a. P's investment = (80000 x 6 + 60000 x 6) = 840000 for 1 month. b & c. Q's investment = 80% of Rs. 60000 for 8 months. = Rs.(48000 x 8) for 1 month = 384000 for 1 month P : Q = 840000 : 384000 = 35 : 16. But, the total profit is not given, so data is inadequate.
प्र: Which of the following is a Decomposition Reaction? 1733 05b5cc6a9e4d2b4197774ceca
5b5cc6a9e4d2b4197774ceca- 12HgO ----> 2Hg + O2false
- 26NaNO3 ----> 6NaNO2 + 3O2false
- 3ZnCO3 ----> ZnO + CO2false
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: All the given reactions are Decomposition reactions. Decomposition reaction is a reaction in which only one reactant is splitted into two or more products.
प्र: Namitha sold a powerbank which is at the cost of Rs. 1950 at a loss of 25%. Find at what cost will she have to sell it to get a profit of 25%? 1733 05b5cc6b1e4d2b4197774d341
5b5cc6b1e4d2b4197774d341- 1Rs. 3680false
- 2Rs. 3560false
- 3Rs. 3320false
- 4Rs. 3250true
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उत्तर : 4. "Rs. 3250"
व्याख्या :
Answer: D) Rs. 3250 Explanation: Let the Cost price of the powerbank = Rs. P But given that by selling it at Rs. 1950, it gives a loss of 25% => P x 75100 = 1950=>P = 1950 x 10075 = Rs. 2600Now, to get a profit of 25% Selling Price = 2600 x 125100 = Rs. 3250.
प्र: There is a clock which shows false timing ie it shows 20 minutes less for each 1 hour. If the clock shows 12 noon now how many minutes will be lost when it shows 2 pm ? 1733 05b5cc728e4d2b4197774f71e
5b5cc728e4d2b4197774f71e- 136 minutesfalse
- 248 minutesfalse
- 335 minutesfalse
- 460 minutestrue
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उत्तर : 4. "60 minutes"
व्याख्या :
Answer: D) 60 minutes Explanation: For 1 hour, 20 minutes is slower, then for 06 miuntes - 2 minutes is slower30 minutes - 10 minutesActual time | false time 12 12 01 PM 12:40 PM (20 minutes slower) 02 PM 01:20 PM 03 PM 02:00 PM So, when actual time is 3pm, the false time is 2 pm.So, it loses 60 minutes when it shows 2 pm.
प्र: Name the state assembly, which has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. 1733 05b5cc6a3e4d2b4197774cc25
5b5cc6a3e4d2b4197774cc25- 1Rajasthan Assemblytrue
- 2Uttar Pradesh Assemblyfalse
- 3Maharashtra Assemblyfalse
- 4Bihar Assemblyfalse
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उत्तर : 1. "Rajasthan Assembly"
व्याख्या :
Answer: A) Rajasthan Assembly Explanation: Rajasthan assembly has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. State Home Minister Gulab Chand Kataria introduced 'The Criminal Laws (Rajasthan Amendment) Bill, 2018' in the assembly, which was passed in the House by a voice vote following a debate.
प्र: Where and when the first session of Indian National Congress was held ? 1732 05b5cc6c0e4d2b4197774daee
5b5cc6c0e4d2b4197774daee- 1Delhi, 1890false
- 2Mumbai, 1885true
- 3Madras, 1887false
- 4Kolkata, 1889false
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उत्तर : 2. "Mumbai, 1885"
व्याख्या :
Answer: B) Mumbai, 1885 Explanation: The first session of Indian National Congress was held from 28–31 December 1885, in Mumbai and was attended by 72 delegates. Womesh Chandra Bonnerjee was the first president of the Indian National Congress (INC), a voice of Indian opinion to the British government.