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1

NEET 2013

MCQ (Single Correct Answer)
Which of the following does not give oxygen on heating?
A
K2Cr2O7
B
(NH4)2Cr2O7
C
KClO3
D
Zn(ClO3)2

Explanation

(NH4)2Cr2O7 $$\buildrel \Delta \over \longrightarrow $$ N2 + Cr2O3 + 4H2O

Zn(ClO3)2 $$\buildrel \Delta \over \longrightarrow $$ ZnCl2 + 3O2

KClO3 $$\buildrel \Delta \over \longrightarrow $$ KCl + $${3 \over 2}$$O2

2K2Cr2O7 $$\buildrel \Delta \over \longrightarrow $$ 2K2CrO4 + Cr2O3 + $${3 \over 2}$$ O2
2

NEET 2013

MCQ (Single Correct Answer)
Which one of the following molecules contains no $$\pi $$ bond?
A
SO2
B
NO2
C
CO2
D
H2O

Explanation

H2O does not contain any $$\pi $$-bond.
3

NEET 2013

MCQ (Single Correct Answer)
Which is the strongest acid in the following?
A
HClO4
B
H2SO3
C
H2SO4
D
HClO3

Explanation

HClO4 with highest oxidation number and its conjugate base is resonance stabilised, hence it is most acidic.
4

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)
Which statement is wrong?
A
Beryl is an example of cyclic silicate.
B
Mg2SiO4 is orthosilicate.
C
Basic structural unit in silicates is the SiO4 tetrahedron.
D
Feldspars are not aluminosilicates.

Explanation

Feldspars are three dimensional aluminosilicates.

Questions Asked from p-Block Elements

On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions
NEET 2021 (3)
NEET 2020 Phase 1 (5)
NEET 2019 (6)
NEET 2018 (2)
NEET 2017 (3)
NEET 2016 Phase 2 (2)
NEET 2016 Phase 1 (5)
AIPMT 2015 (5)
AIPMT 2015 Cancelled Paper (1)
AIPMT 2014 (1)
NEET 2013 (Karnataka) (2)
NEET 2013 (6)
AIPMT 2012 Mains (1)
AIPMT 2012 Prelims (3)
AIPMT 2011 Mains (2)
AIPMT 2011 Prelims (1)
AIPMT 2010 Mains (1)
AIPMT 2010 Prelims (4)
AIPMT 2009 (3)
AIPMT 2008 (1)
AIPMT 2007 (3)
AIPMT 2006 (5)
AIPMT 2005 (4)
AIPMT 2004 (2)
AIPMT 2003 (1)
AIPMT 2002 (2)
AIPMT 2001 (1)
AIPMT 2000 (2)

Chapters Map

Physical Chemistry

Gaseous State
Solid State
Surface Chemistry
Nuclear Chemistry
Some Basic Concepts of Chemistry
Thermodynamics
Solutions
Electrochemistry
Chemical Kinetics
Structure of Atom
Equilibrium
Redox Reactions

Inorganic Chemistry

s-Block Elements
p-Block Elements
Coordination Compounds
Periodic Table and Periodicity
Processes of Isolation of Elements
d and f Block Elements
Environmental Chemistry
Chemical Bonding and Molecular Structure
Hydrogen

Organic Chemistry

Alcohol, Phenols and Ethers
Hydrocarbons
Chemistry in Everyday Life
Haloalkanes and Haloarenes
Organic Compounds Containing Nitrogen
Biomolecules
Polymers
Some Basic Concepts of Organic Chemistry
Aldehydes, Ketones and Carboxylic Acids

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Class 12