12th Standard Syllabus & Materials

12th Standard

TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

state board english medium chemistry metallurgy Important finding wrong statement questions in chemistry

Published on: 28/06/2019

Important finding wrong statement questions in chemistry

Download Tamil Nadu 12th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

Questions + Answers key

Take MCQ Chemistry Test

QB365 Student Learing Managemnet System

Std: 12th Standard - Chemistry

chapter: - Model Question paper

Visit QB365-SLMS - https://www.qb365.in/slms/ Complete Questions and Answers

Questions:

Find the wrong statement

5 x 2 = 10

a) Metallic oxides can be reduced by an alumino thermic process.
b) Flux + gangue \(\rightarrow\) slag
c) Silica gangue present in the ore is basic in nature
d) Cu₂S + FeS \(\rightarrow\) Copper matter

a) Germanium is used as an semi conductor
b) Stainless steel is an important alloy of Aluminum
c) Zinc sulphide is used in making luminous paints.
d) Brass an alloy of zinc is used in water valves

a) Aluminium is used to produce die-castings
b) Gold nanoparticles used as an catalysts
c) Copper is the first metal used by the human
d) Brass is an alloy of zinc and copper

About "Van-Arkel''
a) Van-Arkel method used for refining Zirconium.
b) Aluminium is a bad conductor of heat.
c) Aluminium shows high resistance to corrosion.
d) Aluminium is a good conductor of heat

About "Electrolytic refining"
a) The crude metal is refined by electrolysis.
b) The rods of impure metal are used as cathode.
c) Thin strips of pure metal are used as cathode.
d) Less electropositive impurities removed as anode mud.