NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 418 - 424 of 3111
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Question 418
Question MCQ▾
When n-Hexane heated at 773K under high pressure in the presence of there is the formation of
Choices
Choice (4) | Response | |
---|---|---|
a. | 3-methyl pentane | |
b. | Benzene | |
c. | 2-methyl pentane | |
d. | Toluene |
Question 419
Question MCQ▾
An electron beam can undergo diffraction by crystals. Through what potential should a beam of electrons be accelerated so that its wavelength becomes equal to
Choices
Choice (4) | Response | |
---|---|---|
a. | 33.3 volt | |
b. | 63.3 volt | |
c. | 43.3 volt | |
d. | 53.3 volt |
Question 420
Question MCQ▾
Which one of the following is not the correct value of R?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 421
Question MCQ▾
Decolonization of acidified potassium permanganate occurs when hydrogen peroxide is added to it. This is due to?
Choices
Choice (4) | Response | |
---|---|---|
a. | oxidation and reduction of | |
b. | oxidation of | |
c. | reduction of | |
d. | None of the above |
Question 422
Question MCQ▾
The total spin resulting from a d5 configuration is –
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | 1 | |
d. | 2 |
Question 423
Question MCQ▾
If the temperature of 1 mole of a gas is increased by 50 °C, calculate the change in kinetic energy of the system?
Choices
Choice (4) | Response | |
---|---|---|
a. | 767.3 J | |
b. | 623.5 J | |
c. | 6230 J | |
d. | 62.33 J |
Question 424
Question MCQ▾
In which of the following reactions does hydrogen acts as an oxidizing agent?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |