IIT JEE Practice Question and Answer
8Q: What loses its head every morning and gets it back every night? 1997 05b5cc6b5e4d2b4197774d525
5b5cc6b5e4d2b4197774d525- 1Pillowtrue
- 2Candlefalse
- 3Moonfalse
- 4Lightfalse
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Answer : 1. "Pillow"
Explanation :
Answer: A) Pillow Explanation:
Q: Choose the correct order 1) is 2) at 3) TV 4) film 5) midnight 6) a 7) on 8) great 9) There 1996 05b5cc718e4d2b4197774f495
5b5cc718e4d2b4197774f495- 19, 1, 6, 8, 7, 4, 3, 2, 5false
- 29, 1, 6, 8, 4, 7, 3, 5, 3false
- 39, 1, 6, 8, 4, 7, 3, 2, 5true
- 49, 6, 1, 8, 4, 7, 3, 2, 5false
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Answer : 3. "9, 1, 6, 8, 4, 7, 3, 2, 5"
Explanation :
Answer: C) 9, 1, 6, 8, 4, 7, 3, 2, 5 Explanation: There is a great film on tv at midnight.
Q: Ram sell his goods 25% cheaper than Shyam and 25% dearer than Bram. How much % is Bram's good cheaper than Shyam ? 1996 05b5cc70be4d2b4197774f2f6
5b5cc70be4d2b4197774f2f6- 160%false
- 240%true
- 350%false
- 430%false
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Answer : 2. "40%"
Explanation :
Answer: B) 40% Explanation: Lets say shyam sells at 100, Since Ram sells 25% cheaper than Shyam, Therefor Ram sells at less than 25% of100 or 75 rs. Ram sells 25% dearer than Bram or 125% of Ram =100% of Bram or 125% of x (say x price of bram )=75rs.or 100% of x =60rs.hence price of bram is 60rs. now Bram's good is cheaper than Shyam's as (100-60)x100/100% or 40%. Hence Brams Good is 40% cheaper than that of Shyam's good.
Q: Both skin and lung cancer are classified as carcinomas. 1996 05b5cc626e4d2b4197774b879
5b5cc626e4d2b4197774b879- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: Carcinomas are cancers that begin in tissues lining the inner or outer surfaces of the body where the DNA of the cells become damaged. Lung cancer and one type of skin cancer (squamous-cell carcinoma) are carcinomas. Hence, the given statement is TRUE.
Q: Okhla Bird Sanctuary is located in 1995 05b5cc6b2e4d2b4197774d39f
5b5cc6b2e4d2b4197774d39f- 1Rajasthanfalse
- 2West Bengalfalse
- 3Maharashtrafalse
- 4Uttar Pradeshtrue
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Answer : 4. "Uttar Pradesh"
Explanation :
Answer: D) Uttar Pradesh Explanation: Okhla Bird Sanctuary is located in Uttar Pradesh. Okhla Bird Sanctuary is a bird sanctuary at the Okhla barrage over Yamuna River. It is situated in Noida, Gautam Buddh Nagar district, on Delhi-Uttar Pradesh state border and known as a haven for over 300 bird species.
Q: Which of the following is the most stable carbocation? 1994 05b5cc69ee4d2b4197774c9a9
5b5cc69ee4d2b4197774c9a9- 14false
- 23false
- 32true
- 41false
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Answer : 3. "2"
Explanation :
Answer: C) 2 Explanation: Here the most stable carbocation is the option (2). Carbocations are always hungry for electrons. The stability of carbocations increases from primary to secondary to tertiary. Here, option (c) shows the most stable carbocation because it can easily withdraw electrons from two other carbon atoms and the more electronegative oxygen atom. Carbocation stability depends on hyperconjugation. The tertiary carbocation is stabilized by electron releasing inductive effect.
Q: Eighteen years ago, a mother was three times as old as her daughter. Now the mother is only twice as old as her daughter. Then the sum of the present ages of daughter and the mother is ? 1993 05b5cc6f8e4d2b4197774f06d
5b5cc6f8e4d2b4197774f06d- 184 yrsfalse
- 296 yrsfalse
- 3116 yrsfalse
- 4108 yrstrue
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Answer : 4. "108 yrs"
Explanation :
Answer: D) 108 yrs Explanation: Let the present ages of the mother and daughter be 2x and x years respectively. Then, (2x - 18) = 3(x - 18) => x = 36 Required sum = (2x + x) = 108 years.
Q: Find the odd man out of the following number sequence? 3, 5, 13, 43, 167 1993 05b5cc622e4d2b4197774b820
5b5cc622e4d2b4197774b820- 1167true
- 243false
- 313false
- 45false
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Answer : 1. "167"
Explanation :
Answer: A) 167 Explanation: The given number series is 3, 5, 13, 43, 167 3 3 x 1 + 2 = 5 5 x 2 + 3 = 13 13 x 3 + 4 = 43 43 x 4 + 5 = 177 (not equal to 167) Hence, the odd number in the given number sequence is 167.

