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Recent questions tagged chemistry
Questions
Which of the following is not a protein?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q30
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is an example of fibrous protein?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q29
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Enzymes are
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q28
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is an example of globular protein?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q27
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is pyrimidine base
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q26
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is purine base ?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q25
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The disease albinism is caused by the deficiency of enzyme
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q24
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is a ketohexose?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q23
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
A nucleoside is made of
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q22
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Niacin is vitamin
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q21
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following is the simplest carbohydrate?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q20
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The non proteinous substances which certain enzymes require for their activity are called
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q19
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The destruction of the biological nature and activity of proteins by heat or by chemical agent is called
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q18
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Invert sugar is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q17
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following amino acid is achiral?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q16
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Glucose and Fructose are
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q15
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which disaccharide is present in milk?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q14
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The letter D in carbohydrates signifies
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q13
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Nucleic acids are the polymers of
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q12
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The relationship between nucleotide triplets and the amino acids is called
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q11
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Which of the following bases is not present in DNA?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q10
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
$ \alpha $-helix refers to
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q9
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Amyloprotein is a polymer of
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q8
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
When hemiacetal reacts with alcohol the product is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q7
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The constituent units of sucrose are
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q6
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Fructose has/is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q5
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The amino acids are the end products of the digestion of
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q4
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Maltose on hydrolysis gives
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q3
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
The linkage which binds various amino acids in secondary structure of proteins is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q2
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
$2.68 \times 10^{-3} $ moles of a solution containing an ion $A^{n+}$ acqired. $1.81 \times 10^{-3}$ moles of $MnO_4^{-}$ for the oxidation of $An^{+} +0 AO_3^{-}$ in acid medium. What is the value of n
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
difficult
asked
Mar 27, 2014
by
meena.p
1
answer
Which of the following is an example of aldohexose?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
easy
q1
asked
Mar 27, 2014
by
thanvigandhi_1
1
answer
Statement 1: In the titration of $Na_2CO_3$ with $Hcl$ using methyl orange indicator, the volume required at the equivalence point is twice that of the acid required using phenolphthalein indicator Statement 2: Two moles of $HCl$ are required for the complete neutralization of one mole of $Na_2CO_3$ .
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
medium
asked
Mar 27, 2014
by
meena.p
1
answer
Mixture $X$ containing $0.02\;mol$ of $[CO(NH_3)_5 SO_4]Br$ and $0.02\;mol$ of $[CO(NH_3)_ {Br}]SO_4$ was prepared in $2$ litre of solution . $1$ litre of mixture X+ excess $AgNO_3\; \to\; Y $ $1$ litre of mixture $X+$ excess $BaCl_2 \; \to\; Z $. Number of moles of $Y$ and $Z$ are
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
difficult
asked
Mar 27, 2014
by
meena.p
1
answer
Which of the following does not respond to basic hydrolysis?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q49
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Which of the following gives positive carbylamine test?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q48
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
p-chloro aniline and anilinium hydrochoride can be distinguished by
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q47
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Which of the following is correct order of basisity of amines in gas phase?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q46
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Which of the following is most basic
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q45
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Nitro benzene can be prepared from benzene by using a mixture of Conc $H_2SO_4$ and CONC $HNO_3$.In te mixture Nitric acid acts as
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q44
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
starch can be used as an indicator for the detection of traces of
jeemain
chemistry
class12
unit14
biomolecules
carbohydrates
easy
asked
Mar 26, 2014
by
sreemathi.v
1
answer
Predict the product in the following sequence
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q43
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Carbohydrate without asymmetric carbon atom is
jeemain
chemistry
class12
unit14
biomolecules
carbohydrates
easy
asked
Mar 26, 2014
by
sreemathi.v
1
answer
The reaction of $CHCl_3$ and alcoholic $KOH$ with para toluidine gives
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q42
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
A polysaccharide that give only glucose when completely hydrolysed.
jeemain
chemistry
class12
unit14
biomolecules
carbohydrates
easy
asked
Mar 26, 2014
by
sreemathi.v
1
answer
The correct order of increasing basic nature of following bases is
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q41
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
$(C_4H_{10}O_5)_n + nH_2O → C_{12}H_{22}O_{11} + H_2O → 2C_6H_{12}O_6$ What are the enzymes used in above conversion of Cellulose to Maltose to Glucose respectively ?
jeemain
chemistry
class12
unit14
biomolecules
carbohydrates
easy
asked
Mar 26, 2014
by
sreemathi.v
1
answer
Toluene is nitrated and the resulting product is reduced with tin and $ HCl$. The product so obtained is diazotized and then treated with cuprous bromide. The reaction mixture so formed contains
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q40
medium
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Which will not undergo diazotization?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q39
medium
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Calculate how much of the $\alpha$ and $\beta$ anomers of glucose are present in equlibrium mixture with a specific rotation of 52.6 degrees. (pure $\alpha$ D- glucose has specific rotation = + 112.2 degrees and that of $\beta$- D-glucose has specific rotation + 19 degrees)
jeemain
chemistry
class12
unit14
biomolecules
carbohydrates
easy
asked
Mar 26, 2014
by
sreemathi.v
1
answer
Which of the following on reduction with $LiAlH_4$ Yields a secondary amine?
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q38
medium
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
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