Recent questions tagged 2000

For the reaction ${H^+}+BrO{_3^-}+3Br^-\rightarrow 5Br_2 +H_2O$ which of the following relation correctly represents the consumption & formation of reactants and products :

asked Jul 20, 2018 by pady_1

0 answers

For the reaction $C_2H_5OH(l)+3O_2(g)\rightarrow2CO_2(g)+3H_2O(l)$ which one is true :

asked Jul 20, 2018 by pady_1

1 answer

Mg is present in :

asked Jul 20, 2018 by pady_1

1 answer

Which ion is colourless :

asked Jul 20, 2018 by pady_1

1 answer

Isoelectronic species are :

asked Jul 20, 2018 by pady_1

1 answer

Correct order of dissociation energy of $N_2$ and $N{ _2^+}$ is :

asked Jul 20, 2018 by pady_1

1 answer

Shape of $Fe{(CO)_5}$ is :

asked Jul 20, 2018 by pady_1

1 answer

Which compound form linear polymer due to H-bond :

asked Jul 20, 2018 by pady_1

1 answer

Which statement is wrong :

asked Jul 20, 2018 by pady_1

1 answer

$d\pi-p\pi$ bond present in :

asked Jul 20, 2018 by pady_1

1 answer

Which of the following compound is electron defficient :

asked Jul 20, 2018 by pady_1

1 answer

A 300 gram radioactive sample has half life of 3 hours. After 18 hours remaining quantity will be

asked Jul 20, 2018 by pady_1

2 answers

Which statement is wrong about pH and $H^+$

asked Jul 20, 2018 by pady_1

1 answer

For given energy, corresponding wavelength will be $E=3.03\times 10^{-19}$ Joules($h=6.6\times 10^{-34}J\times sec$., $C = 3\times10^8$ m/sec.)

asked Jul 20, 2018 by pady_1

1 answer

Average molar kinetic energy of CO and $N_2$ at same temperature is :

asked Jul 20, 2018 by pady_1

1 answer

Which one is responsible for produce energy in bio reaction :

asked Jul 20, 2018 by pady_1

1 answer

Dihedral angle in staggered form of ethane is :

asked Jul 20, 2018 by pady_1

1 answer

2-butene shows geometrical isomerism due to :

asked Jul 20, 2018 by pady_1

1 answer

Correct order of stability is :

asked Jul 20, 2018 by pady_1

1 answer

$CF_2$ = $CF_2$ is monomer of :

asked Jul 20, 2018 by pady_1

1 answer

$\alpha-D-glucose$ and $\beta-D-glucose$ are :

asked Jul 20, 2018 by pady_1

1 answer

Reduction by $LiAlH_4$ of hydrolysed product of an ester gives :

asked Jul 20, 2018 by pady_1

1 answer

Which reagent converts propene to 1-propanol :

asked Jul 20, 2018 by pady_1

1 answer

A bubble in glass slab $(\mu = 1.5)$ when viewed from one side appears at 5 cm and 2 cm from other side, then thickness of slab is :

asked Jul 20, 2018 by pady_1

1 answer

When an electron do transition from n = 4 to n = 2, then emitted line in spectrum will be :

asked Jul 20, 2018 by pady_1

1 answer

The cations and anions are arranged in alternate form in :

asked Jul 20, 2018 by pady_1

1 answer

The life span of atomic hydrogen is :

asked Jul 20, 2018 by pady_1

2 answers

The correct relation for $\alpha$ , $\beta$ for a transistor :

asked Jul 20, 2018 by pady_1

1 answer

For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be

asked Jul 20, 2018 by pady_1

1 answer

The potentiometer is best for measuring voltage, as :

asked Jul 20, 2018 by pady_1

2 answers

A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be :

asked Jul 20, 2018 by pady_1

2 answers

According to the Faraday Law of electrolysis, the mass deposited at electrode proportional to :

asked Jul 20, 2018 by pady_1

1 answer

The bob of simple pendulum having length l, is displaced from mean position to an angular position $\theta$ with respect to vertical. If it is released, then velocity of bob at lowest position :

asked Jul 20, 2018 by pady_1

1 answer

Given Truth table is correct for :

asked Jul 20, 2018 by pady_1

1 answer

From the following diode circuit. Which diode in forward biased condition :

asked Jul 20, 2018 by pady_1

0 answers

The ratio (W/Q) for a carnot – engine is $\frac{1}{6}$ ,Now the temp. of sink is reduced by 62ºC, then this ratio becomes twice, therefore the initial temp. of the sink and source are respectively :

asked Jul 20, 2018 by pady_1

1 answer

The relation between $\lambda$ and $T_\frac{1}{2}$ is : ( $T_\frac{1}{2}$= half life , $\lambda\rightarrow decay constant$ )

asked Jul 20, 2018 by pady_1

1 answer

The equations of two waves given as $X=acos(\omega t+\delta)$ and $X=acos(\omega t+ \alpha)$, Where $\delta=\alpha+\frac{\pi}{2}$, then resultant wave represent :

asked Jul 20, 2018 by pady_1

0 answers

Motion of a particle is given by equation $S=({3t^3}+{7t^2}+14 t+8)m$ The value of acceleration of the particle at t = 1 sec. is :

asked Jul 20, 2018 by pady_1

1 answer

The width of river is 1 km. The velocity of boat is 5 km/hr. The boat covered the width of river with shortest will possible path in 15 min. Then the velocity of river stream is :

asked Jul 20, 2018 by pady_1

1 answer

Electric field atcentre O of semicircle of radius 'a' having linear charge density $\lambda$ given is given by O a

asked Jul 20, 2018 by pady_1

1 answer

The frequency order of for $\gamma$- rays b, X – rays a, UV – rays(c):

asked Jul 20, 2018 by pady_1

1 answer

To find out degree of freedom, the correct expression is :

asked Jul 20, 2018 by pady_1

1 answer

For a hollow cylinder & a solid cylinder rolling without slipping on an inclined plane, then which of these reaches earlier on the ground :

asked Jul 20, 2018 by pady_1

0 answers

Maximum frequency of emission is obtained for the transition :

asked Jul 20, 2018 by pady_1

0 answers

A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capacity is connected in parallel with it. Then energy stored in each capacitor is :

asked Jul 20, 2018 by pady_1

1 answer

Calculate the net resistance of the circuit between A and B :

asked Jul 20, 2018 by pady_1

1 answer

A mass of 1kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 400 g comes down with a velocity 25 m/s Calculate the velocity of other part :

asked Jul 20, 2018 by pady_1

1 answer

A body of mass 3 kg hits a wall at an angle of $60^{\circ}$ & returns at the same angle. The impact time was 0.2 s. Calculate the force exerted on the wall :

asked Jul 20, 2018 by pady_1

1 answer

Two masses as shown are suspended from a massless pulley. Calculate the acceleration of the system when masses are left free :

asked Jul 20, 2018 by pady_1

1 answer

Ask Questions, Get Answers