Physics Questions Practice Question and Answer
8 Q: Degree of dissociation does not depend on which of the following factors?
1627 063c7cd09b338bc336f093b86
63c7cd09b338bc336f093b86- 1Nature of the solutefalse
- 2Nature of the solventfalse
- 3Soundtrue
- 4Concentrationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Sound "
Explanation :
The Degree of dissociation does not depend on catalyst.The equivalent conductivity of 0.1M weak acid is 100 times less than that at infinite dilution.
Q: Do doctors use to check patients' nose, ears, throat etc.?
1625 05f6da922f9079a64e3c0a92d
5f6da922f9079a64e3c0a92d- 1plane mirrorfalse
- 2convex mirrorfalse
- 3concave mirrortrue
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "concave mirror"
Q: Is light year unit?
1621 060b4b86af2c446136b8b764e
60b4b86af2c446136b8b764e- 1Timefalse
- 2massfalse
- 3Distancetrue
- 4none of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Distance"
Q: Gamma rays can cause
1613 05f2cdcc979b9e641a75fadc2
5f2cdcc979b9e641a75fadc2- 1burningfalse
- 2feverfalse
- 3gene mutationtrue
- 4sneezingfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "gene mutation "
Q: What is the most effective conductor of electricity?
1611 05f86a8e8dcf12a01a1419787
5f86a8e8dcf12a01a1419787- 1Goldfalse
- 2Ironfalse
- 3Silvertrue
- 4Copperfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Silver "
Q: Unit of impedance is ___________.
1608 162f33bf409a97851b630c16d
62f33bf409a97851b630c16d- 1ohmtrue
- 2henryfalse
- 3teslafalse
- 4hertzfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "ohm"
Q: What are the conditions for gas like Carbon monoxide to obey the ideal gas laws?
1594 063c8f745bdbddb32fda0e8d0
63c8f745bdbddb32fda0e8d0- 1Low temperature and low pressurefalse
- 2Low temperature and high pressurefalse
- 3High temperature and low pressuretrue
- 4High temperature and high pressurefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "High temperature and low pressure "
Explanation :
A real gas can behave as an ideal gas if volume of molecule is negligible and interaction between molecule is negligible. This will happen if number of molecule per unit volume is very small. This is only possible at high temperature and low pressure.
Q: What is the degree of dissociation for strong electrolytes?
1594 063c7ccbc8731ac33279b21f7
63c7ccbc8731ac33279b21f7- 11true
- 20false
- 3Less than 1false
- 4Greater than 1false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "1"
Explanation :
Strong electrolytes have a degree of dissociation close to one, while weak electrolytes have a degree of dissociation less than one. Solvent nature: Solvents with a high dielectric constant show more dissociation. Dilution: As the solution is diluted, the degree of dissociation increases.