Recent questions tagged 92

Purines found both in DNA and RNA are :-

asked Jul 8, 2019 by pady_1

1 answer

Compound A reacts with $PCl_5$ to give B which on treatment with $KCN$ followed by hydrolysis gave propanoic acid. What is A and B respectively ?

asked Dec 19, 2018 by pady_1

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Tinstone is contaminated with Wolframite. Which one of the following methods can be employed to dress the tinstone ore ?

asked Dec 19, 2018 by pady_1

1 answer

What is the crystal structure of caesium chloride ?

asked Dec 19, 2018 by pady_1

0 answers

$n$ moles of an ideal gas at temperature $T$ (in kelvin) occupy $V\; L$ of volume, exerting a pressure of $P$ atmospheres. What is the concentration (in $mol/L$) ?

asked Dec 11, 2018 by pady_1

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The most stable ion is :

asked Dec 11, 2018 by pady_1

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Which one of the following compounds has the smallest bond angle in its molecule ?

asked Dec 11, 2018 by pady_1

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A block of mass 0.50 kg is moving with a speed of 2.00 m/s on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

asked Nov 29, 2018 by pady_1

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Presence of a nitro group in a benzene ring :

asked Nov 29, 2018 by pady_1

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Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces :

asked Nov 13, 2018 by pady_1

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The solubility product of a salt having general formula $MX_2$, in water is $4 \times 10^{-12}$. The concentration od $M^{2+}$ ions in the aqueous solution of the salt is :

asked Nov 5, 2018 by pady_1

0 answers

In Vander Waals equation of state of the gas law, the constant 'b' is a measure of

asked Nov 5, 2018 by pady_1

1 answer

Natality refers to

asked Aug 21, 2018 by pady_1

1 answer

Phosphoenol pyruvate (PEP) is the primary $CO_2$ acceptor in :

asked Aug 21, 2018 by pady_1

1 answer

Change in GnRH pulse frequency in females is controlled by circulating levels of -

asked Aug 21, 2018 by pady_1

1 answer

Auxin can be bioassayed by -

asked Aug 21, 2018 by pady_1

1 answer

Five kingdom system of classification suggested by R.H. Whittaker is not based on:

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following is not a correct statement ?

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following sets of monosaccharides forms sucrose ?

asked Aug 20, 2018 by pady_1

1 answer

Which one is a nucleophilic substitution reaction among the following ?

asked Aug 16, 2018 by pady_1

1 answer

Which one of the following is employed as a Tranquilizer drug?

asked Jul 26, 2018 by pady_1

1 answer

Which one of following is employed as a tranquilizer ?

asked Jul 26, 2018 by pady_1

1 answer

In which of the following co-ordination entities the magnitude of $\bigtriangleup_o$ (CFSE in octahedral field) will be maximum? <br> (Atomic number of Co=27)

asked Jul 26, 2018 by pady_1

1 answer

Predict the product C obtained in the following reaction of butyne-1 : <br> <img src =""/>

asked Jul 26, 2018 by pady_1

0 answers

The correct order regarding the electronegativity of hybrid orbitals of carbon is:-

asked Jul 25, 2018 by pady_1

1 answer

Which of the following would have a permanent dipole moment -

asked Jul 24, 2018 by pady_1

1 answer

Among $[Ni(CO)_4]$$[Ni(CN)_4]^{2-}$,$[NiCl_4]^{2-}$,species, the hybridization states at the Ni atom are, respectively :- (At. No. of Ni = 28)

asked Jul 24, 2018 by pady_1

1 answer

When m-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are)

asked Jul 24, 2018 by pady_1

1 answer

In the above reaction product 'P' is :

asked Jul 23, 2018 by pady_1

0 answers

The following quantum numbers are possible for how many orbital n = 3, l = 2, m = +2

asked Jul 20, 2018 by pady_1

1 answer

$2Zn+O_2\rightarrow 2ZnO$ $\bigtriangleup Gº $= – 616 J $2Zn+S_2\rightarrow 2ZnS$ $\bigtriangleup Gº$ = – 293 J $S_2+2O_2 \rightarrow 2SO_2$ $\bigtriangleup Gº$ = – 408 J $\bigtriangleup Gº$ for the following reaction is :$2ZnS+3O_2 \rightarrow 2ZnO+ 2SO_2$

asked Jul 20, 2018 by pady_1

1 answer

Mole fraction of solute is 0.2 in solution then lowering in V.P $\bigtriangleup P = 10$. If lowering in V.P. $\bigtriangleup P = 20$ then mole fraction of solvent will be in solution :

asked Jun 15, 2018 by pady_1

1 answer

How many months in a year have 30 days ?

asked Dec 31, 2015 by pady_1

1 answer

Each of the letters of the word MISSISSIPPI are written on separate pieces of paper that are then folded, put in a hat, and mixed thoroughly. One piece of paper is chosen (without looking) from the hat. What is the probability it is an I?

asked Dec 31, 2015 by pady_1

1 answer

Find the cost of painting a wall of length 80 m and breadth 15 m at the rate of $ 4 per sq. m.

asked Dec 31, 2015 by pady_1

0 answers

It takes John 25 minutes to walk to the car park and 45 to drive to work. At what time should he get out of the house in order to get to work at 9:00 a.m.?

asked Dec 31, 2015 by pady_1

0 answers

The goal scored by a team is 6 matches are 1, 2, 5, 3, 4, 0. Find the average score of the team.

asked Dec 31, 2015 by pady_1

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