Advertisements
Advertisements
Question
_______ is the least reactive metal.
Options
silver
sodium
zinc
gold
Advertisements
Solution
Gold is the least reactive metal.
APPEARS IN
RELATED QUESTIONS
Give reasons.
Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.
In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.
Name the gas in air which tarnishes silver articles slowly.
How are the less reactive metals (which are quite low in the reactivity series) extracted? Explain with the help of an example.
Define the term ore.
Name one ore of copper (other than cuprite). Which compound of copper is present in this ore? Also, write its chemical formula.
Name the gas produced when calamine ore is calcined.
An ore of manganese metal is ______.
The metal which can be extracted from pyrolusite ore is ______.
Give reasons, why aluminum is used in:
painting electric and telegraphic poles
Complete the incomplete statement with missing words:
Metals are ______ while non-metals are ______ conductors of heat.
Answer the following question :
What is the difference between calcination and roasting.
Name the following:
A steel grey coloured solid non-metal.
How is the method of extraction of metals high up in the reactivity series different from that for metals in the middle? Why can the same process not be applied for them? Name the process used for the extraction of these metals.
Aluminium oxide is _______ oxide.
Gold and silver are active metals.
Complete flow chart given below.
Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
Assertion (A): The extraction of metals from their sulphide ores cannot take place without roasting the ore.
Reason (R): Roasting converts sulphide ores directly into metals.
