IIT JEE Practice Question and Answer
8Q: Area of a square and a rectangle are equal. If side of the square is 40 cm and length of the rectangle is 64 cm, what is the perimeter of the rectangle ? 1341 05b5cc6c2e4d2b4197774dbe1
5b5cc6c2e4d2b4197774dbe1- 1187 cmfalse
- 2178 cmtrue
- 3149 cmfalse
- 4194 cmfalse
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Answer : 2. "178 cm"
Explanation :
Answer: B) 178 cm Explanation: Area of square = 40 x 40 = 1600 sq.cm Given that the areas of Square and Rectangle are equal => Area of rectangle = 1600 Sq.cm We know that, Area of rectangle = L x B Given L = 64 cm Breadth of rectangle = 1600/64 = 25 cm Perimeter of the rectangle = 2(L + B) = 2(64+25) = 178 cm.
Q: What is the first thing that alcohol effects? 1340 05b5cc6a2e4d2b4197774cb7a
5b5cc6a2e4d2b4197774cb7a- 1Judgementtrue
- 2Speechfalse
- 3Visionfalse
- 4Balancefalse
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Answer : 1. "Judgement"
Explanation :
Answer: A) Judgement Explanation: Alcohol impairs your judgement. Judgement is in your brain stupid and it impairs your brain.
Q: Which is called 'OFF State' in binary? 1340 05b5cc6b3e4d2b4197774d423
5b5cc6b3e4d2b4197774d423- 14false
- 23false
- 32false
- 41true
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Answer : 4. "1"
Explanation :
Answer: D) 1 Explanation: '0' is called OFF State in Binary...
Q: Which country has been ranked number one in pollution related deaths ? 1340 05b5cc6c0e4d2b4197774db19
5b5cc6c0e4d2b4197774db19- 1Australiafalse
- 2Indonesiafalse
- 3Indiatrue
- 4Japanfalse
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Answer : 3. "India"
Explanation :
Answer: C) India Explanation:
Q: "International Day for Disaster Reduction" was observed across the world on _____ ? 1340 05b5cc6c1e4d2b4197774db64
5b5cc6c1e4d2b4197774db64- 116 Octoberfalse
- 215 Octoberfalse
- 314 Octoberfalse
- 413 Octobertrue
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Answer : 4. "13 October"
Explanation :
Answer: D) 13 October Explanation: International Day for Disaster Reduction, held every 13 October, celebrates how people and communities around the world are reducing their exposure to disasters. The year 2017 focus is : Reducing the number of affected people by disasters by 2030.
Q: What gas makes up most of the atmosphere? 1339 05b5cc636e4d2b4197774ba48
5b5cc636e4d2b4197774ba48- 1Oxygenfalse
- 2Heliumfalse
- 3Nitrogentrue
- 4Carbondioxidefalse
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Answer : 3. "Nitrogen"
Explanation :
Answer: C) Nitrogen Explanation: Our atmosphere is made up of 78% Nitrogen, 21% Oxygen and 1% all other gases like argon, carbon dioxide, neon, and helium. So, Nitrogen makes up the majority of our atmosphere.
Q: Which of the following is the strongest acid? 1339 05b5cc6b7e4d2b4197774d5ec
5b5cc6b7e4d2b4197774d5ec- 1ClCH2COOHfalse
- 2BrCH2COOHfalse
- 3FCH2COOHtrue
- 4ICH2COOHfalse
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Answer : 3. "FCH2COOH"
Explanation :
Answer: C) FCH2COOH Explanation: FCH2COOH is the strongest acid out of all .Since the electron withdrawing inductive effect (-I effect) of the halogens decreases in the order F>Cl> Br> I , therefore the acidic strength of the α- halo acids decreases in the same order. FCH2COOH > ClCH2COOH > BrCH2COOH > ICH2COOH.
Q: Simplify the following expression? 40% of (244 x ?) = 48 1338 05b5cc6aae4d2b4197774cf5b
5b5cc6aae4d2b4197774cf5b- 124false
- 222false
- 320true
- 418false
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Answer : 3. "20"
Explanation :
Answer: C) 20 Explanation: We know that 40% = 40100 = 25⇒25 x 244 x ? = 48? = 48 x 5 x 42 x 24 = 20

