Q. What is formed when zinc reacts with sodium hydroxide? Zinc hydroxide and sodium Sodium zincate and hydrogen gas Sodium zinc-oxide and hydrogen gas Sodium zincate and water Answer: Sodium zincate and hydrogen gas
What is formed when zinc reacts with sodium hydroxide? Read More »
Which one of the following salts does not con-tain water of crystallisation?
Which one of the following salts does not con-tain water of crystallisation? Read More »
Q. When hydrogen chloride gas is prepared on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to absorb the evolved gas moisten the gas absorb moisture from the gas absorb Cl– ions from the evolved gas Answer:
In terms of acidic strength, which one of the following is in the correct increasing order?
Common salt besides being used in kitchen can also be used as the raw material for making
Which of the following do not conduct electricity? 1. Ethyl alcohol 2. Glucose 3. Water
Which of the following do not conduct electricity? 1. Ethyl alcohol 2. Glucose 3. Water Read More »
Q. Hydrogen burns with a pop sound in the presence of Nitrogen Oxygen Sulphur dioxide Argon Answer: Oxygen
Hydrogen burns with a pop sound in the presence of Read More »
Q. Copper chloride is a light brown solid, which slowly absorbs moisture to form a
Copper chloride is a light brown solid, which slowly absorbs moisture to form a Read More »
Which gas is usually liberated when an acid reacts with a metal?
Which gas is usually liberated when an acid reacts with a metal? Read More »
