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प्रश्न
Name a metal which does not react with cold as well as hot water but reacts with steam.
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उत्तर
Aluminium does not react with cold or hot water but it reacts with steam.
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संबंधित प्रश्न
Write equation for the reaction of sodium with oxygen.
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
Which of the following elements would yield a neutral oxide?
Na, S, C, K, H
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
Describe the reaction of potassium with water. Write the equation of the reaction involved.
Write the equation for the reaction of Aluminium with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Write the equation for the reaction of Zinc with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Name one metal more reactive and another less reactive than hydrogen.
Name one metal which displaces copper from copper sulphate solution and one which does not.
Name one metal which displaces silver from silver nitrate solution and one which does not.
An element X reacts with hydrogen, when heated, to form a covalent hydride H2X. If H2X has a smell of rotten eggs, the element X is likely to be:
(a) carbon
(b) sulphur
(c) chlorine
(d) phosphorus
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
(a) an acidic oxide
(b) a basic oxide
(c) an amphoteric oxide
(d) a neutral oxide
Write the name and formula of a molecule made up of three atoms of oxygen.
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.
Answer the following question:
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is metal or a non - metal. Explain with a proper example.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
Why is acidified water considered to be a good conductor of electricity?
