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Chemistry
List of top Chemistry Questions
$ \text{C}{{\text{H}}_{\text{3}}}\text{COCl} $
does not react with:
JCECE - 2006
JCECE
Chemistry
Stoichiometry and Stoichiometric Calculations
The stability of ferric ion is due to:
BCECE - 2006
BCECE
Chemistry
Structure of atom
When
$ C{{H}_{3}}COOH $
reacts with
$ C{{H}_{3}}-MgX: $
BCECE - 2006
BCECE
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which reagent can convert acetic acid into ethanol ?
BCECE - 2006
BCECE
Chemistry
Aldehydes, Ketones and Carboxylic Acids
A cyclic hydrocarbon molecule has all the carbon and hydrogen is a single plane. All the carbon-carbon bonds are of same length, less than
$ 1.54\,??
but more than
$ 1.34 \,?? $
The C-C bond angle will be:
BCECE - 2006
BCECE
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Acetals are
BCECE - 2006
BCECE
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which of the following is the most basic oxide?
AIPMT - 2006
AIPMT
Chemistry
trends in periodic table
$R - \underset{\overset{||}{O}}{C} - Cl + H_2 \ce{->[Pd/BaSO_4][S]} RCHO$, the name of reaction is :
Delhi UMET/DPMT - 2006
Delhi UMET/DPMT
Chemistry
Chemical Reactions
Reactivity order of following towards $ NaOE,\,EtOH $ :
Delhi UMET/DPMT - 2006
Delhi UMET/DPMT
Chemistry
Chemical Reactions
How many ions will be furnished by $ CoCl_{3}\,.\,\,6NH_{3} $ ?
Delhi UMET/DPMT - 2006
Delhi UMET/DPMT
Chemistry
Isomerism in Coordination Compounds
Toluene by Etard reaction gives:
DUET - 2006
DUET
Chemistry
Nomenclature of Coordination Compounds
At high pressure van der Waals equation becomes :
DUET - 2006
DUET
Chemistry
Van Der Waals equation
Reactivity order of following towards
$ NaOE,\,EtOH $
:
DUET - 2006
DUET
Chemistry
Chemical Reactions
$R - \underset{\overset{||}{O}}{C} - Cl + H_2 {->[Pd/BaSO_4][S]} RCHO$
, the name of reaction is :
DUET - 2006
DUET
Chemistry
Chemical Reactions
Number of atoms in bcc :
DUET - 2006
DUET
Chemistry
Unit Cells
Starch is converted to ethanol by fermentation. The sequence of enzymes used are
DUET - 2006
DUET
Chemistry
Nomenclature of Coordination Compounds
How many ions will be furnished by
$ CoCl_{3}\,.\,\,6NH_{3} $
?
DUET - 2006
DUET
Chemistry
Isomerism in Coordination Compounds
Which has equilibrium constant as one?
DUET - 2006
DUET
Chemistry
Equilibrium Constant
If the bond length of CO bond in carbon monoxide is
$1.128 \mathring{A}, $
then what is the value of CO bond length in
$Fe(CO)_5? $
JEE Advanced - 2006
JEE Advanced
Chemistry
coordination compounds
The smallest ketone and its next homologue are reacted with
$NH_2OH$
to form oxime
JEE Advanced - 2006
JEE Advanced
Chemistry
Aldehydes, Ketones and Carboxylic Acids
(I) 1, 2-dihydroxy benzene (II) 1, 3-dihydroxy benzene (III) 1, 4-dihydroxy benzene (IV) Hydroxy benzene The increasing order of boiling points of above mentioned alcohols is
JEE Advanced - 2006
JEE Advanced
Chemistry
Phenols
$\xrightarrow{Cl_2,hv\, \, }N(isomeric\, products) C_5 H_{11} Cl$
$\xrightarrow{\, \, Fractional\, distillation \, }M(isomeric\, products)$
What are N and M?
JEE Advanced - 2006
JEE Advanced
Chemistry
Hydrocarbons
$CuSO_4$
decolourises on addition of KCN, the product is
JEE Advanced - 2006
JEE Advanced
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A solution when diluted with
$H_2 0$
and boiled, it gives a white precipitate. On addition of excess
$NH_4 CI / NH_4 0H$
, the volume of precipitate decreases leaving behind a white gelatinous precipitate. Identify the precipitate which dissolves in
$NH_4 OH / NH_4 CI.$
JEE Advanced - 2006
JEE Advanced
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
$ MgSO_4 $
on reaction with
$ NH_4OH $
and
$ Na_2HPO_4 $
forms a white crystalline precipitate. What is its formula?
JEE Advanced - 2006
JEE Advanced
Chemistry
GROUP 1 ELEMENTS
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