Chemistry GK Practice Question and Answer
2 4 Q:
64bfc857a2d4dcaf044da339 Answer : 4. "Oxygen"
4 Q:
650ab26a63078e50a28c8adb Answer : 2. "If it has more electrons than neutrons"
Q: Which of the following elements is NOT a component of baking soda?
574 164bfc857a2d4dcaf044da339
64bfc857a2d4dcaf044da339- 1Hydrogenfalse
- 2Calciumfalse
- 3Sodiumfalse
- 4Oxygentrue
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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 of the following will be a negative ion?
632 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
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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.
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