IIT JEE Practice Question and Answer
8Q: Which of the following chemical compounds has the highest boiling point? 1880 05b5cc6b5e4d2b4197774d52a
5b5cc6b5e4d2b4197774d52a- 1Dimethyl ether (CH3OCH3)false
- 2Methanol (CH3OH)true
- 3Methane (CH4)false
- 4Nonefalse
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Answer : 2. "Methanol (CH3OH)"
Explanation :
Answer: B) Methanol (CH3OH) Explanation: Chemical Compounds with stronger intermolecular forces have higher boiling points. The order of strengths of intermolecular forces is: London dispersion < dipole-dipole < H-bonding Methane (CH4) — London dispersion forces Dimethyl ether (CH3OCH3) — dipole-dipole attractions Methanol (CH3OH) — hydrogen bonding Therefore, Methanol - CH3OH with H-Bonding have highest Boiling Point among the given chemical compounds.
Q: Two girls ate dinner together. After that they both ordered iced tea. One girl drank them very fast and had finished five in the time it took the other to drink just one. The girl who drank one died while the other survived. However, all of the drinks that were served turned out to contain poison. How did the girl who drank the most survive? 1879 05b5cc67be4d2b4197774c1ea
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Answer :
Explanation :
The poison was in the ice. When the girl drank the iced tea, the ice was still fully frozen. Gradually, as the ice cubes melted the poison was released into the drink. Hence, the girl who died, drunk the tea after the ice melted. So, she was died.
Q: Which of the following is a healthy blood pressure level? 1879 05b5cc645e4d2b4197774bbaf
5b5cc645e4d2b4197774bbaf- 1120/80true
- 2140/90false
- 3135/75false
- 4130/70false
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Answer : 1. "120/80"
Explanation :
Answer: A) 120/80 Explanation: A normal reading would be any blood pressure below 120/80 mm Hg and above 90/60 mm Hg in an adult. If you're in the normal range, no medical intervention is needed. However, you should maintain a healthy lifestyle and healthy weight to help prevent hypertension from developing.
Q: What does the judicial branch do? 1879 05b5cc651e4d2b4197774bcda
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Answer :
Explanation :
The United States government has 3 branches, which all serve an important role in running the government and keeping our system of laws in place. 1. The legislative branch 2. The executive branch 3. The judicial branch The legislative branch makes the laws while the executive branch enforces these laws. The judicial branch is a system of courts that applies the laws. Both the federal government and each of the 5 states have individual judicial branches which all serve this purpose. For example :: If the federal government were like a basketball game, the judicial branch is much like the referee that helps settle disputes. The executive branch and the legislative branch are often like the players in the game trying to score points against each other, and the judicial branch is there to clarify the rules and make sure each side is acting fairly.
Q: Guess the Hiding Letter ? 1879 05b5cc6d2e4d2b4197774e462
5b5cc6d2e4d2b4197774e462- 1Dfalse
- 2Kfalse
- 3Lfalse
- 4Gtrue
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Answer : 4. "G"
Explanation :
Answer: D) G Explanation: Starting from letter 'S' add 5 in the clock wise direction to get the next letter in English alphabets. Here S + 5 => 19 + 5 = 24 => X X + 5 = 24 + 5 = 3 => C Similarly, B + 5 = G
Q: Who has won the men's singles title at the 82nd Senior National Championship? 1879 05b5cc6bfe4d2b4197774da00
5b5cc6bfe4d2b4197774da00- 1H S Prannoytrue
- 2Ashwini Kumarfalse
- 3Rakesh Kumarfalse
- 4Kidambi Srikanthfalse
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Answer : 1. "H S Prannoy"
Explanation :
Answer: A) H S Prannoy Explanation: H S Prannoy has won the men’s singles title at the 82nd Senior National Championship Senior National Badminton Championships in Nagpur, Maharashtra on November 8, 2017. He defeated higher ranked Kidambi Srikanth in the final by 21- 15, 16- 21, 21-7.
Q: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 1879 05b5cc6c0e4d2b4197774dacb
5b5cc6c0e4d2b4197774dacb- 1-23false
- 227false
- 316false
- 4-19true
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Answer : 4. "-19"
Explanation :
Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.
Q: What has keys but no locks? 1878 05b5cc69be4d2b4197774c810
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Answer :
Explanation :
A Keyboard has keys but no locks.

