GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS Quiz-16
Dear Readers,
The one subject in NEET which is candidates who can easily attain good marks is Chemistry. That's the reason, often, one doesn’t pay notice and choose to compromise it. But if one wants to rank above others, the tip is to be thorough with NEET chemistry concepts. The understanding of reactions and definite basic understanding is what requires major attention in Chemistry but once done it only gets simpler from there. The main focus on the to-do list should be on getting a hang of the NCERT syllabus of NEET chemistry.
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Q1. The process of concentrating silver ore is based on its solubility in:
Solution
Ag2S forms soluble complex with KCN.
Ag2S forms soluble complex with KCN.
Q2. Of the following, which cannot be obtained by electrolysis of the aqueous solution of their salts?
Solution
Mg and Al cannot be obtained by the electrolysis of aqueous solution of their salts because instead of metal, H2 gas is liberated at cathode
Mg and Al cannot be obtained by the electrolysis of aqueous solution of their salts because instead of metal, H2 gas is liberated at cathode
Q3. Which is not a mineral of aluminium?
Solution
Bauxite (Al2 O3.2H2O) Corundum (Al2O3) Diaspore(Al2 O3.H2O)
Bauxite (Al2 O3.2H2O) Corundum (Al2O3) Diaspore(Al2 O3.H2O)
Q4. Beryl is an important ore of:
Solution
Beryl is 3BeO∙ Al2 O3∙6SiO2.
Beryl is 3BeO∙ Al2 O3∙6SiO2.
Q5.Which is not a basic flux?
Solution
SiO2 is an acidic flux.
SiO2 is an acidic flux.
Q6. Argentite is a mineral of
Solution
It is a fact.
It is a fact.
Q7.Blood haemoglobin contains:
Solution
It is a fact.
It is a fact.
Q8.Which metal is not silver white?
Solution
Copper metal is reddish brown in colour.
Copper metal is reddish brown in colour.
Q9.The phenomenon in which white transparent crystal changes into white powder is known as:
Solution
The phenomenon of efflorescence involves spontaneous loss of water molecules from a crystal.
The phenomenon of efflorescence involves spontaneous loss of water molecules from a crystal.
Q10. Electric furnaces are lined with magnesia because:
Solution
Thus, furnace material can withstand high temperature.
Thus, furnace material can withstand high temperature.
