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Recent questions tagged set b
Questions
The sum of coefficient of integral powers of x in the binomial expansion of $(1-2 \sqrt x)^{50}$ is :
jeemain
2015
maths
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which one has the highest boiling point ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The standard Gibbs energy changes at 300 k for the reaction $2A= B+C$ is $2494.2\;J$ At a given time, the composition of the reaction mixture is $[A]=\large\frac{1}{2}$$,[B] =24$ and $[C]=\frac{1}{2} $. The reaction proceeds in the : $[R= 8.314\;J/K/mol,e = 2.718]$
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
From the following statement regarding $H_2O_2$ , choose the incorrect statement :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The Vapour pressure of acetone at $20^{\circ}C$ is $185\;torr$.When $1.2 \;g$ of a non- volatile substance was dissolved in 100 g of acetone at $20^{\circ}$its vapour pressure was $183$ torr. The molar mass $(g mol^{-1}) of the substance is :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which of the following compounds will exhibit geometrical isomerism?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Sodium metal crystallizes in a body centered cubic lattice with a unit cell edge of $44.29 \dot{A}$ the radius of sodium atom is approximately :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which of the following compounds is not colored yellow ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
In Carius method of estimation of halogens , 250 mg of an organic compound gave 141 mg of AgBr. The percentage of bromine in the compounb is :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The following reaction is performed at $298\;K$ $2NO(g) +O_2(g) \to 2NO_2(g)$ . The standard free energy of formation of $NO(g)$ is $86.6\;kJ\; mol $ at $298\;K$. What is the standard free energy of formation of $ NO_2 (g) $ at $298\;K\; (K_p = 1.6 \times 10^{12})$
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The inter molecular interaction that is dependent on the inverse cube of distance between the molecules is :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which of the vitamins gives below is water soluble ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The molecular formula of a commercial resin used for exchanging ions in water softening is $C_8H_7SO_3Na$ (Mol.wt.206) What would be the maximum uptake of $Ca^{2+}$ ions by the resin when expressed in mole per gram resin ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The synthesis of alkyl fluorides is best accomplished by :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
3g of activated charcoal was added to 50 mL of acetic acid solution $(0.06\;N)$ in a flask. After an hour it was filtered was found to be $0.042\;N$ . The amount of acetic acid absorbed (per gram of charcoal ) is :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Two Faraday of electricity is passed through a solution of $CuSO_4$ . The mass of copper deposited at the cathode is : (at . mass of Cu=63.5 amu)
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Which among the following is the most reactive ?
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
Higher order $(>3)$ reaction are rare due to :
jeemain
2015
chemistry
set b
asked
Oct 23, 2015
by
meena.p
1
answer
The number of geometric isomers that can exists for square planar $[Pt(Cl)(py)(NH_3)(NH_2OH)]^+$ is (py=pyridine )
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Which polymer is used in the manufacture of paints and lacquers ?
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
In the Reaction :
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Match the catalysts to the correct processes :
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
In the context of the Hall- Heroult process for the extraction of $Al$ which of the following statement is false ?
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Which of the following compounds is not an antacid ?
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Assertion : Nitrogen and Oxygen are the main component in the atmosphere but these but these do not react to form oxides of nitrogen . Reason : The reaction between nitrogen and Oxygen requires high temperature .
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
The color of $KMnO_4$ is due to :
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
The ionic radii (in A) of $N^{3-},O^{2-}$ and $F^{-}$ are respectively :
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Which compound would give 5 -keto-2-methyl hexanal upon ozonolysis ?
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
In the following sequence of reactions :
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
Which of the following is the energy of a possible excited state of hydrogen ?
jeemain
2015
chemistry
set b
asked
Oct 16, 2015
by
meena.p
1
answer
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