IIT JEE Practice Question and Answer
8Q: Autoimmune diseases associated with vitiligo 2174 05b5cc615e4d2b4197774b69d
5b5cc615e4d2b4197774b69d- 1Thyroiditisfalse
- 2Diabetes mellitusfalse
- 3Psoriasisfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Explanation :
Answer: D) All of the above Explanation: Vitiligo is a condition in which the skin loses its pigment cells (melanocytes). This can result in discolored patches in different areas of the body, including the skin, hair, retina and mucous membranes. Many disorders have been linked to vitiligo. They are:: Hashimoto thyroiditis, Graves disease, Addison disease and diabetes mellitus, alopecia areata, pernicious anemia, inflammatory bowel disease, psoriasis, and autoimmune polyglandular syndrome.
Q: Find value of log27 +log 8 +log1000log 120 2173 15b5cc7d0e4d2b4197775120e
5b5cc7d0e4d2b4197775120e- 11/2false
- 23/2true
- 32false
- 42/3false
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Answer : 2. "3/2"
Explanation :
Answer: B) 3/2 Explanation: = log 33 + log 23+ log 103log10×3×22 =log33 12+log 23+log 10312log(10×3×22) =12log 33+3 log 2+12 log103log10+log3+log22 =32log 3 + 2 log 2 + log 10log 3 + 2 log 2 + log 10 = 32
Q: Which process allows water to enter the atmosphere? 2173 05b5cc699e4d2b4197774c6f1
5b5cc699e4d2b4197774c6f1- 1Transpirationfalse
- 2Respirationfalse
- 3Condensationfalse
- 4Evaporationtrue
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Answer : 4. "Evaporation"
Explanation :
Answer: D) Evaporation Explanation: Evaporation is the process that allows water to enter into the atmosphere. Sunlight turns liquid water into water vapor which then rises higher into the atmosphere and forms into clouds. Plants, too, help water get into the atmosphere through a process called transpiration.
Q: What important polymer is located in the nucleus? 2172 05b5cc611e4d2b4197774b650
5b5cc611e4d2b4197774b650- 1Ribosomesfalse
- 2Chromosomesfalse
- 3DNAtrue
- 4Proteinsfalse
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Answer : 3. "DNA"
Explanation :
Answer: C) DNA Explanation: The most important polymer present in the nucleus is DNA- the master molecule. It is a polymer of Nucleotides.
Q: Which is the highest gallantry award in India? 2172 05b5cc64ae4d2b4197774bc25
5b5cc64ae4d2b4197774bc25- 1Param Vir Chakratrue
- 2Kirti Chakrafalse
- 3Vir Chakrafalse
- 4Param Vishishtat Seva Medalfalse
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Answer : 1. "Param Vir Chakra"
Explanation :
Answer: A) Param Vir Chakra Explanation: Param Vir Chakra (PVC) is India's highest military decoration awarded for the displaying distinguished acts of valor during the war. Ashok Chakra Award – An Indian military decoration awarded for valour, courageous action or self-sacrifice away from the battlefield. It is the peacetime equivalent of the Param Vir Chakra. Kirti Chakra – Second in order of precedence of peacetime gallantry awards. Maha Vir Chakra (MVC) is literally called a great warrior medal. Vir Chakra is an Indian gallantry award presented for acts of bravery in the wars.
Q: Headquarters of Competition Commission of India (CCI) is in 2171 05b5cc62ae4d2b4197774b8bd
5b5cc62ae4d2b4197774b8bd- 1New Delhitrue
- 2Hyderabadfalse
- 3Bangalorefalse
- 4Kolkatafalse
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Answer : 1. "New Delhi"
Explanation :
Answer: A) New Delhi Explanation: Competition Commission of India (CCI) was established on 14th October 2003. It headquarters in New Delhi.
Q: Which of the following is a chemical property? 2171 05b5cc619e4d2b4197774b723
5b5cc619e4d2b4197774b723- 1Reactivitytrue
- 2Solubilityfalse
- 3Densityfalse
- 4All of the abovefalse
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Answer : 1. "Reactivity"
Explanation :
Answer: A) Reactivity Explanation: The ability of two or more substances to combine to form other substances is called Reactivity.
Q: Which player has become the first left-arm spinner to take 400 wickets in Test cricket ? 2171 05b5cc6c2e4d2b4197774dbdc
5b5cc6c2e4d2b4197774dbdc- 1Ravindra Jadejafalse
- 2Mitchell Starcfalse
- 3Rangana Herathtrue
- 4Kuldeep Yadavfalse
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Answer : 3. "Rangana Herath"
Explanation :
Answer: C) Rangana Herath Explanation:

