Chemistry GK Practice Question and Answer
8 Q: Which non-metal is liquid at room temperature?
1198 06127640793f02206607ee962
6127640793f02206607ee962- 1mercuryfalse
- 2aluminumfalse
- 3Brominetrue
- 4Copperfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Bromine"
Q: Which of the following non-metals are kept immersed in water?
1198 061275d63b05363065a006bf3
61275d63b05363065a006bf3- 1Sulfurfalse
- 2White Phosphorustrue
- 3Red Phosphorusfalse
- 4Iodinefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "White Phosphorus"
Q: Which of the following elements is NOT a component of baking soda?
1188 164bfc857a2d4dcaf044da339
64bfc857a2d4dcaf044da339- 1Hydrogenfalse
- 2Calciumfalse
- 3Sodiumfalse
- 4Oxygentrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Oxygen"
Explanation :
1. Which of the following calcium elements is not a component of baking soda?
2. The chemical formula of baking soda is NaHCO3, which is composed of four elements sodium, hydrogen, carbon and oxygen.
3. Baking soda is an alkaline substance used as a leavening agent in baking.
Q: Which metal floats when put in water?
1181 061275a37302e8b067c99aa84
61275a37302e8b067c99aa84- 1Calciumtrue
- 2Nickelfalse
- 3Magnesiumfalse
- 4Potassiumfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Calcium"
Q: Which metal does not react with oxygen even at high temperature?
1157 0612759fb302e8b067c99a4be
612759fb302e8b067c99a4be- 1Ironfalse
- 2goldtrue
- 3Potassiumfalse
- 4Aluminumfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "gold"
Q: Which of the following reactions always have pairs together?
1156 05f698f46558d255013b2b2b6
5f698f46558d255013b2b2b6- 1combination and dissolutionfalse
- 2precipitation and displacementfalse
- 3neutralization and displacementfalse
- 4Oxidation and degradationtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Oxidation and degradation"
Q: The alloy of lead and tin is called?
1153 061276441dbe92e068b9154b4
61276441dbe92e068b9154b4- 1Steelfalse
- 2metalloidsfalse
- 3Gun Matonfalse
- 4soldertrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "solder"
Q: Sodium chloride and water are formed by the reaction of sodium hydroxide and hydrochloric acid. What is this reaction?
1148 05f698f9a558d255013b2b659
5f698f9a558d255013b2b659- 1neutralizationtrue
- 2Disintegrationfalse
- 3combinationfalse
- 4precipitationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice