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प्रश्न
Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________
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उत्तर
AgCI : White :: CuI2 : Brown
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संबंधित प्रश्न
2 mL of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed, a gas evolves which is bubbled through a soap solution before testing. Write the equation of the chemical reaction involved and the test to detect the gas. Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.
Giving examples, state the difference between balanced and unbalanced chemical equations.
Write the balanced equation for the following reaction, and add the state symbol:
Sodium hydroxide reacts with sulphuric acid to produce sodium sulphate and water.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
Which of the following is not an endothermic reaction?
Write word equation for the following skeletal equation:
\[\ce{CO + O2 -> CO2}\]
What do the following symbol stand for?
2H2
State the information conveyed by the following equation:
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2 ↑
Balance the following equation:
NO2 +H2O → HNO2 + HNO3
Name the fundamental law that is involved in every equation.
Write the balanced chemical equation of the following reaction.
zinc sulphide + oxygen → zinc oxide + sulphur dioxide
Write the balanced chemical equation of the following reaction.
aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of acid required.
Write word equation for the following molecular equation:
CuCo3 → CuO + CO2 [g]
Word equation:
State the characteristics or indications occurring in the above reaction.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Pressure
Give word equation for the following chemical reaction and give the names of the product formed.
NH3 + HCl→ NH4Cl
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
6NaOH + 3Cl2 → 6NaCl + NaClO3 + 3H2O
Write the skeleton equation for the following word equation and then balance them.
- Carbon + Oxygen → Carbon dioxide.
- Phosphorus + Chlorine → Phosphorus pentachloride.
- Sulphur + Oxygen → Sulphur dioxide.
- Magnesium + hydrogen → Magnesium + Hydrogen chloride chloride.
What is called thermolysis reactions?
Give the characteristic tests for the following gases :
- CO2
- SO2
- O2
- H2
