Chemistry Practice Question and Answer
8 4 Q:
5fe1bfc8ce32c8585c73a73c 4 Q:
5feb06f200e3f71b828c287a 4 Q:
5f0ecca3dcdb5f61f5c4abe9 4 Q:
6113d4d088e0566940a8176d 4 Q:
5ee0d1d3ca41b347ed350a6c 4 Q:
5f697aa5397b1a52908bfe4f 4 Q:
650ab26a63078e50a28c8adb Answer : 2. "If it has more electrons than neutrons"
4 Q:
5f0439f6d996064ceba91846
Q: Which of the following is not nucleon?
1709 05fe1bfc8ce32c8585c73a73c
5fe1bfc8ce32c8585c73a73c- 1Protonfalse
- 2Neutronfalse
- 3Both (A) and (B)false
- 4Positrontrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Positron "
Q: Which of the following metals can be cut with a knife?
1655 05feb06f200e3f71b828c287a
5feb06f200e3f71b828c287a- 1Magnesiumfalse
- 2Sulfurfalse
- 3Sodiumtrue
- 4Chromiumfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Sodium"
Q: The atomic nucleus was discovered by
1655 05f0ecca3dcdb5f61f5c4abe9
5f0ecca3dcdb5f61f5c4abe9- 1Einsteinfalse
- 2Thompsonfalse
- 3Rutherfordtrue
- 4Daltonfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Rutherford "
Q: Methane an air pollutant is produced ___________
1652 06113d4d088e0566940a8176d
6113d4d088e0566940a8176d- 1by burning of coal in insufficient airfalse
- 2by digestion of food by animalstrue
- 3by action of ultraviolet light on nitrogenous compounds.false
- 4as a by-product of manufacturing ammoniacal fertilizersfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "by digestion of food by animals"
Q: In which of the following chlorine has + 1 oxidation number?
1648 05ee0d1d3ca41b347ed350a6c
5ee0d1d3ca41b347ed350a6c- 1Zinc chloridefalse
- 2Chlorinefalse
- 3Hypochlorous acidtrue
- 4Hydrochloric acidfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Hypochlorous acid"
Q: What is the pH value of sodium hydroxide?
1631 05f697aa5397b1a52908bfe4f
5f697aa5397b1a52908bfe4f- 111false
- 212false
- 313false
- 414true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "14"
Q: Which of the following will be a negative ion?
1608 0650ab26a63078e50a28c8adb
650ab26a63078e50a28c8adb- 1If it has more electrons than protonsfalse
- 2If it has more electrons than neutronstrue
- 3If it has more protons than electronsfalse
- 4If it has more protons than neutronsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "If it has more electrons than neutrons"
Explanation :
If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.
Q: Burning of Hydrogen produces
1604 05f0439f6d996064ceba91846
5f0439f6d996064ceba91846- 1Soilfalse
- 2Watertrue
- 3Oxygenfalse
- 4Ashfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Water"
en2668popular