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प्रश्न
The chemical name of baking soda is ______.
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उत्तर
The chemical name of baking soda is sodium bicarbonate.
Explanation:
Sodium bicarbonate (NaHCO3) is commonly known as baking soda.
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संबंधित प्रश्न
Fill in the blank.
The formation of gas bubbles in a liquid during a reaction is called ......................
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction reaction is the exact opposite of
- displacement reaction
- decomposition reaction
- oxidation reaction
- none of these
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
Give a word equation for the following reaction.
An exothermic reaction where both the reactants are gases, one of which is oxygen.
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
State the following reaction represent oxidation or reduction.
\[\ce{Cl- ->Cl}\]
Chemists identify gypsum as a natural indicator.
Analogy:
H2O: Water:: NaCl: ______.
Arrange the following statements in correct sequence:
- One side is water-loving and other water-hating molecules.
- When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
- The dirt surrounded by the detergent molecules floats in the water making it dirty.
- Finally, the cloth is clean.
- The detergent molecules have two sides.
- Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
