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Recent questions tagged chemistry
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what is the osmotic pressure of the solutionobtained by mixing 300 cm3 of 2
chemistry
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Jul 31, 2017
by
rajukeesari30
1
answer
An aqueous solution of 2% non volatile solute exert a pressure of 1.004 bar
chemistry
asked
Jul 31, 2017
by
rajukeesari30
1
answer
The major product obtained in the following reaction is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
The gaseous kcl molecule has a measure dipole moment of 10.0D, which indi
chemistry
asked
Jul 31, 2017
by
chojirothoudam1357
1
answer
The correct sequence of reagents for the following conversion will be :
jeemain
2017
chemistry
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02042017
asked
Jul 31, 2017
by
meena.p
0
answers
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
Which of the following compounds will behave as a reducing sugar in an aqueous $KOH$ solution ?
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
The major product obtained in the following reaction is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
The increasing order of the reactivity of the following halides for the $S_N1$ reaction is :
jeemain
2017
chemistry
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02042017
asked
Jul 31, 2017
by
meena.p
0
answers
Which of the following molecules is least resonance stabilized ?
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
The gaseous kcl molecule has a measure dipole moment of 10.0D, which indica
chemistry
asked
Jul 31, 2017
by
chojirothoudam1357
1
answer
The formation of which of the following polymers involves hydrolysis reaction ?
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to decolourize the colour of bromine ?
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
Which of the following compounds will form significant amount of meta product during mono-nitration reaction ?
jeemain
2017
chemistry
set a
02042017
asked
Jul 31, 2017
by
meena.p
0
answers
When is major product fromed when actone is heated with iodine and potassiu
chemistry
asked
Jul 30, 2017
by
bhushanzore24
1
answer
There is a cube unit cell which has an atom in every angle position and ha
chemistry
asked
Jul 30, 2017
by
meghakabiraj33
1
answer
A certain dye absorbs a light of lamda=4350Å and then flourescence light o
chemistry
asked
Jul 29, 2017
by
garvind206
1
answer
5. The density of lead is 11.35g/cm3 and the metal crystallises with fcc un
chemistry
asked
Jul 29, 2017
by
0603ash
1
answer
5. The density of lead is 11.35g/cm3 and the metal crystallises with fcc un
chemistry
asked
Jul 29, 2017
by
0603ash
1
answer
3. An alloy of gold and cadmium crystallises with a cubic structure in whic
chemistry
asked
Jul 29, 2017
by
0603ash
1
answer
The ratio of the difference in energy between the first and second Bohr orb
chemistry
asked
Jul 29, 2017
by
v11changawala
1
answer
1)-OPh 2)-OCH3 3)-OH
chemistry
asked
Jul 29, 2017
by
poulinprakash
1
answer
How many grams of h2o2 are required to convert 0.1 moles PbS to 0.1 moles P
chemistry
asked
Jul 29, 2017
by
anjuptech
1
answer
How many grams of h2o2 are required to convert 0.1 moles PbS to 0.1 moles P
chemistry
asked
Jul 29, 2017
by
anjuptech
1
answer
1 kg of an aqueous solution of sucrose is cooled and maintained at -4 degre
chemistry
asked
Jul 29, 2017
by
sharonsikha09
0
answers
What friction of a reactant remains after 40 min if t1/2 is 20 min
chemistry
asked
Jul 29, 2017
by
jhas84184
0
answers
Molecular weight of kmno4
chemistry
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Jul 29, 2017
by
1999poojagaikwad
0
answers
A current is passed through 2 cells connected in series.the first cell cont
chemistry
asked
Jul 29, 2017
by
anumaria190
0
answers
which of the following enzymes helps in digestion of proteins
chemistry
asked
Jul 28, 2017
by
ghodkedatta4
0
answers
On treatment of 100 mL of 0.1 M solution of $CoCl_3.6H_2O$ with excess $AgNO_3$; $1.2 \times 10^{22}$ ions are precipitated. The complex is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
0
answers
The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all $^1\;H$ atoms are replaced by $^2 H$ atoms is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
0
answers
Sodium salt of an organic acid ‘X’ produces effervescence with conc. $H_2SO_4$. ‘X’ reacts with the acidified aqueous $CaCl_2$ solution to give a white precipitate which decolourises acidic solution of $KMnO_4$ ‘X’ is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
0
answers
In the following reactions, ZnO is respectively acting as a/an : $(a) ZnO+Na_2 O → Na_2ZnO_2 \\ (b) ZnO+CO_2 → ZnCO_3$
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
0
answers
The products obtained when chlorine gas reacts with cold and dilute aqueous $NaOH$ are :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
0
answers
The group having isoelectronic species is :
jeemain
2017
chemistry
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02042017
asked
Jul 28, 2017
by
meena.p
0
answers
A water sample has ppm level concentration of following anions $F^{-}= 10 ; SO_4^{2-}= 100 ; NO_3^{-}= 50$ The anion/anions that make/makes the water sample unsuitable for drinking is/are :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
1
answer
Which of the following reactions is an example of a redox reaction ?
jeemain
2017
chemistry
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02042017
asked
Jul 28, 2017
by
meena.p
0
answers
Which of the following species is not paramagnetic ?
jeemain
2017
chemistry
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02042017
asked
Jul 28, 2017
by
meena.p
0
answers
Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is incorrect, is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
1
answer
$_p K_a$ of a weak acid (HA) and $_pK_b$ of a weak base $(BOH)$ are 3.2 and 3.4, respectively.The pH of their salt (AB) solution is :
jeemain
2017
chemistry
set a
02042017
asked
Jul 28, 2017
by
meena.p
1
answer
Anorganic compound contains 40.6% carbon and 6.6% Hydrogen and 52.8% oxygen
chemistry
asked
Jul 27, 2017
by
8959govindsingh
1
answer
. 0.321 g sodium carbonate in 250.0 mL of solution
chemistry
asked
Jul 27, 2017
by
rajmynk
1
answer
0.21 aqueous solution of protein contain 1.26g protein. The osmotic pressur
chemistry
asked
Jul 27, 2017
by
shivgehlot2
1
answer
A whether balloon filled with hydrogen at 1atm
chemistry
asked
Jul 27, 2017
by
rajkanwar810
1
answer
what is the valency of an element of which the equivalent weight is 12 and
chemistry
asked
Jul 27, 2017
by
rameshkumarsingh1511965
1
answer
Two reactions $R_1$ and $R_2$ have identical pre-exponential factors. Activation energy of $R_1$ exceeds that of $R_2$ by $10 kJ mol^{−1}$. . If $k_1$ and $k_2$ are rate constants for reactions $R_1$ and $R_2$ respectively at $300\; K$, then $ln(k2/k1)$ is equal to : $(R=8.314 \;J \;mol^{−1} K^{−1} )$
jeemain
2017
chemistry
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02042017
asked
Jul 27, 2017
by
meena.p
0
answers
The radius of the second Bohr orbit for hydrogen atom is :(Planck’s Const.h= $6.6262 \times 10^{-34}\;Js$ mass of electron $= =9.1091 \times 10^{−31}\; kg;$ charge of electron $e= 1.60210 \times 10^{-19}\;C$ permittivity of vacuum$\in_0 =8.854185 \times 10^{-12} \;kg^{-1} m ^{-3} A^2)$
jeemain
2017
chemistry
set a
02042017
asked
Jul 27, 2017
by
meena.p
0
answers
The freezing point of benzene decreases by $0.45^{\circ}C$ when $0.2\; g \%$ of acetic acid is added to $20\; g$ of benzene. If acetic acid associates to form a dimer in benzene,percentage association of acetic acid in benzene will be : $(Kf$ for benzene=$5.12 \;K \;kg mol^{−1})$
jeemain
2017
chemistry
set a
02042017
asked
Jul 27, 2017
by
meena.p
0
answers
Given $E^{\circ} _{Cl_2/Cl^{-}} =1.36 \;V, E^{\circ} _{Cr^{3+}/Cr} =-0.74\;V \\ E^{\circ} _{Cr_2O_7^{2-}} =1.33 \;V, E^{\circ} _{MnO_4^{-}/Mn^{2+}} =1.51 \;V $ Among the following, the strongest reducing agent is :
jeemain
2017
chemistry
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02042017
asked
Jul 27, 2017
by
meena.p
0
answers
a solution of glucose is 10%w/v what is volume in which it is 1g mol be
chemistry
asked
Jul 27, 2017
by
faiza5249
1
answer
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