IIT JEE Practice Question and Answer
8Q: Where does most weather occur in the atmosphere? 1190 05b5cc698e4d2b4197774c648
5b5cc698e4d2b4197774c648- 1Ionospherefalse
- 2Stratospherefalse
- 3Tropospheretrue
- 4Mesospherefalse
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Answer : 3. "Troposphere"
Explanation :
Answer: C) Troposphere Explanation: The troposphere is the lowest layer of the atmosphere and where most clouds are. That means all weather is in the troposphere. Almost all weather occurs in the Troposphere, basically, the lowest layer that goes up to about 10 - 15 kms.
Q: Name the malicious software that affected various computers recently in may 2017, and restricted users to access it until a ransom is paid to unlock it ? 1189 05b5cc6dfe4d2b4197774ead5
5b5cc6dfe4d2b4197774ead5- 1Bitcoinwarefalse
- 2Captivewarefalse
- 3Pay-offwarefalse
- 4Ransomwaretrue
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Answer : 4. "Ransomware"
Explanation :
Answer: D) Ransomware Explanation:
Q: What are the rungs of the DNA ladder made of? 1179 05b5cc683e4d2b4197774c2a7
5b5cc683e4d2b4197774c2a7- 1phosphates and sugarsfalse
- 2nitrates and sugarsfalse
- 3nitrates and phosphatestrue
- 4sugars and hydratesfalse
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Answer : 3. "nitrates and phosphates"
Explanation :
Answer: C) nitrates and phosphates Explanation: The rungs or the sides of the DNA ladder is made of Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.
Q: Is water a Pure substance? 1177 05b5cc6a8e4d2b4197774ce9f
5b5cc6a8e4d2b4197774ce9f- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: True, Water is a Pure substance and not a mixture. We know that, A mixture is when two or more substances combine physically together. You can find that the mixture retains the properties of the original components. In water, two hydrogen atoms combine with one oxygen atom chemically, forming a new substance that has properties different from hydrogen alone or oxygen alone. Therefore, water is not a mixture; it is a compound and it is pure.
Q: What is the name of the Indian Coast Guard Ship which has been decommissioned by the Indian navy recently ? 1171 05b5cc6c9e4d2b4197774dfa6
5b5cc6c9e4d2b4197774dfa6- 1Sarathifalse
- 2Shauryafalse
- 3Varunatrue
- 4Ayushfalse
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Answer : 3. "Varuna"
Explanation :
Answer: C) Varuna Explanation:
Q: 40% of 80? 1140 05b5cc6ade4d2b4197774d11f
5b5cc6ade4d2b4197774d11f- 136false
- 232true
- 342false
- 444false
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Answer : 2. "32"
Explanation :
Answer: B) 32 Explanation: Here 40% of 80 is given as 40100 x 80 = 8 x 4 = 32
Q: _U_R_Y_ Complete this 7 letter word _U_R_Y_ 1. Girls like it2. Boys use it3. Parents hate it. 1132 05b5cc6a2e4d2b4197774cbcc
5b5cc6a2e4d2b4197774cbcc- Show AnswerHide Answer
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Answer :
Explanation :
HURRAYS.
Q: Tanjore kingdom was founded by Raja Odeyar. True or False ? 1123 05b5cc6cae4d2b4197774e02e
5b5cc6cae4d2b4197774e02e- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: Mysore kingdom was founded by Raja Odeyar.