Chemistry GK Practice Question and Answer
8 4 Q:
61276505b05363065a00aaf5 4 Q:
5eeb13ffad25df5a63256bd3 4 Q:
5eeb136fbc81cb2528f1ed1b 4 Q:
5f6990bb558d255013b2c2aa 4 Q:
5eeae018ad25df5a63247ecc 4 Q:
64bfc857a2d4dcaf044da339 Answer : 4. "Oxygen"
4 Q:
5f698eec397b1a52908c7d50 4 Q:
6127655cb05363065a00ac0c
Q: is silica?
1650 061276505b05363065a00aaf5
61276505b05363065a00aaf5- 1metalloidstrue
- 2metalfalse
- 3non-metalsfalse
- 4none of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "metalloids"
Q: Which is the first metal used by humans?
1641 05eeb13ffad25df5a63256bd3
5eeb13ffad25df5a63256bd3- 1Goldfalse
- 2Ironfalse
- 3Coppertrue
- 4Silverfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Copper"
Q: Gastric juice contains acids?
1632 05eeb136fbc81cb2528f1ed1b
5eeb136fbc81cb2528f1ed1b- 1Acetic acidfalse
- 2Sulfuric acidfalse
- 3Hydrochloric acidtrue
- 4Nitric acidfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Hydrochloric acid"
Q: What is the pH value of salts made from strong acids and weak bases?
1631 05f6990bb558d255013b2c2aa
5f6990bb558d255013b2c2aa- 1more than 7false
- 2less than 7true
- 3Between 10 and 14false
- 4less than 14false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "less than 7"
Q: Which of the following metals does not react with cold or hot water?
1623 05eeae018ad25df5a63247ecc
5eeae018ad25df5a63247ecc- 1Nafalse
- 2Cafalse
- 3Mgfalse
- 4Fetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Fe"
Q: Which of the following elements is NOT a component of baking soda?
1622 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: What is the increase in the ratio of oxygen in a chemical reaction?
1612 05f698eec397b1a52908c7d50
5f698eec397b1a52908c7d50- 1Reduction reactionfalse
- 2oxidation reactiontrue
- 3endothermic reactionfalse
- 4displacement reactionfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "oxidation reaction"
Q: It is easy to make stone by beating metals. Which property of the metal does it indicate?
1610 06127655cb05363065a00ac0c
6127655cb05363065a00ac0c- 1hardnessfalse
- 2malleabilitytrue
- 3conductivityfalse
- 4Activityfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "malleability"
en905popular