IIT JEE Practice Question and Answer
8Q: Ozone hole refers to 1490 05b5cc6bbe4d2b4197774d82a
5b5cc6bbe4d2b4197774d82a- 1Decrease in the thickness of ozone layer in Stratospheretrue
- 2Increase in thickness of ozone layerfalse
- 3Decrease in the ozone layer in Tropospherefalse
- 4Hole in the ozone layerfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Decrease in the thickness of ozone layer in Stratosphere"
Explanation :
Answer: A) Decrease in the thickness of ozone layer in Stratosphere Explanation:
Q: Solve the Number Puzzle ? 1488 05b5cc6c9e4d2b4197774dfb6
5b5cc6c9e4d2b4197774dfb6- 120false
- 224false
- 326true
- 430false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "26"
Explanation :
Answer: C) 26 Explanation: Here the puzzle follows the logic that Right side number = sum of the number on the left side and the previous number on the left side => 6 = 4+2 => 10 = 6+4 => ? = 16+10 = 26.
Q: Tribal Cooperative Marketing Development Federation of India Limited (TRIFED) has celebrated 'World Honey Bee Day' on ? 1488 05b5cc6cae4d2b4197774e024
5b5cc6cae4d2b4197774e024- 119th Augusrttrue
- 221st Augustfalse
- 3D) has celebrated 'World Honey Bee Day' on ? A) 19th Augusrt B) 21st August C)false
- 4has celebrated 'World Honey Bee Day' on ? A) 19th Augusrt B) 21st August C) 18th August D) 16th Augustfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "19th Augusrt"
Explanation :
Answer: A) 19th Augusrt Explanation:
Q: Microbial Type Culture Collection Centre is situated at 1488 05b5cc62ae4d2b4197774b8cd
5b5cc62ae4d2b4197774b8cd- 1Chandigarhtrue
- 2New Delhifalse
- 3Hyderabadfalse
- 4Bangalorefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Chandigarh"
Explanation :
Answer: A) Chandigarh Explanation:
Q: Oxidation Number of 'S' in┬аH2SO4? 1488 05b5cc6b3e4d2b4197774d491
5b5cc6b3e4d2b4197774d491- 1+6true
- 2+2false
- 3-6false
- 4-2false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "+6"
Explanation :
Answer: A) +6 Explanation: In┬аH2SO4, Hydrogen has a charge of +2, with each hydrogen has +1. Oxygen has┬а┬аa charge of -8, with each┬аoxugen has -2. Total charge = (2 - 8) = -6 Therefore, the Oxidation number of Sulphur S is '+6' because to make the compound stable.
Q: Only For Geniuses Solve this MathPuzzle if you can? 1488 05b5cc6b6e4d2b4197774d588
5b5cc6b6e4d2b4197774d588- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Let the required number be 'X' Condition 1 :┬а┬а XX┬а=┬а2X┬а┬а=>┬а2X2┬а=┬аX┬а=>┬аX┬а=┬а12 ┬а Condition 2 : X┬а├Ч┬аX┬а=┬аX2=>┬аX┬а=┬а12 ┬а Therefore,┬а12┬аis the number which becomes double when it is divided by itself and becomes half when it is multiplied by itself.
Q: Who has sworn in as 45th Chief Justice of India ┬а? 1487 05b5cc6c9e4d2b4197774df8d
5b5cc6c9e4d2b4197774df8d- 1Dipak Misratrue
- 2J S Kheharfalse
- 3T. S. Thakurfalse
- 4Ranganath Misrafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Dipak Misra"
Explanation :
Answer: A) Dipak Misra Explanation:
Q: Train K crosses a stationary Train L in 50 seconds and a pole in 20 seconds with the same speed. The length of the Train K is 240 meters. What is the length of stationary Train L ? 1487 05b5cc72ce4d2b4197774f75f
5b5cc72ce4d2b4197774f75f- 160 mtsfalse
- 2120 mtsfalse
- 3240 mtsfalse
- 4360 mtstrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "360 mts"
Explanation :
Answer: D) 360 mts Explanation: Speed of the Train K is given by s = d/t = 240/20 = 12 m/sDistance covered by Train K in 50 seconds = 12 x 50 = 600 mts.But it crosses Train L in 50 seconds Therefore, the length of the Train L is = 600 - 240 = 360 mts.