An metal is soft and can be be cut easily with knife. It is very reactive and cannot be kept open in the air. It reacts vigorously with water. This element is most likely to be: - Potassium
Which one of the following four metals would be displaced from the solution of its salt by the other three metals? - Silver
Which one of the following is most reactive metal? - Potassium
Which of the following is most ductile and mealiable metal. - Gold
Which of the following is most good conductor of electricity? - Silver
Which metal is found in liquid state at room temperature. - Mercury
Which is the hardest non-metal. - Diamond
Sulphur element is said to be: - Brittle
An element X reacts with water to form a solution which turns phenolphthalein indicator pink. The element X is most likely to be: - Sodium
The non-metal which exists in the liquid state at room temperature is: - Bromine
A basic oxide will be formed by the element: - Potassium
X is malleable and ductile in nature. Identify X. - a metal
The metal which will not produce hydrogen gas on reacting with dilute sulphuric acid is : - Silver
The element Z burns in air to form an oxide. The aqueous solution of this oxide turns blue litmus to red. The element Z is most likely to be: - Carbon
Which of the following is a metalloid? - Silicon
The least reactive metal among the following is: - Silver
You are given a solution of iron sulphate. Which of the following do you think cannot displace iron from iron sulphate? - Copper
When a vessel is exposed to moist air for long time, then a green coating is formed on its surface. The vessel must be must be made of: - Copper
The element whose oxide will turn red litmus solution to blue will be: - Sodium
Which of the following is not a characteristic property of iron ? - Brittleness
