Recent questions tagged medium

Which of the following is not a true peroxide

asked Jan 24, 2014 by sreemathi.v

1 answer

$H_2O_2$ is obtained by action of dil $H_2SO_4$ on

asked Jan 24, 2014 by sreemathi.v

1 answer

$H_2O_2$ reacts with acidified $K_2Cr_2O_7$ the product formed is

asked Jan 24, 2014 by sreemathi.v

1 answer

The formula of pertitanic acid is

asked Jan 24, 2014 by sreemathi.v

1 answer

Which of the following statement is incorrect

asked Jan 24, 2014 by sreemathi.v

1 answer

In acidic solution $H_2O_2$ oxidises $Hg$ to

asked Jan 24, 2014 by sreemathi.v

1 answer

In a young's double slit experiment the fringe width is $0.05\;mm$ when the distance of screen from slit is $75 \;cm$ . If the distance of screen from the slit is increased by $25 \;cm$ , the fringe width will be

asked Jan 23, 2014 by meena.p

1 answer

A slit of width 'a' is illuminated by white light. For what value of 'a' will the first minimum for red light of wavelength $\lambda =650 \;nm$ appear for $\theta =30^{\circ}$?

asked Jan 23, 2014 by meena.p

1 answer

What is the angular separation between two lines of $\lambda_1 =5882 \mathring{A}$ and $\lambda_2 =5852 \mathring{A}$ in first order grating with 6000 lines per cm in normal incidence.

asked Jan 23, 2014 by meena.p

1 answer

Given the following statements, choose the correct answer:

asked Jan 23, 2014 by balaji.thirumalai

1 answer

A Plastic film of thickness t is placed in the path of one of the interfering wave in the young's double slit experiment and it is found that the central fringe is displaced through a width of 5 fringes . If wavelength of light used is $5890 \mathring{A}$ What is thickness of film used

asked Jan 23, 2014 by meena.p

1 answer

$H_2O_2$ oxidises $H_2S$ to

asked Jan 23, 2014 by sreemathi.v

1 answer

$PbS+H_2O_2\rightarrow H_2O$+________

asked Jan 23, 2014 by sreemathi.v

1 answer

When $H_2O_2$ reacts with chlorine the product obtained is

asked Jan 23, 2014 by sreemathi.v

1 answer

Decomposition of $H_2O_2$ is prevented by adding

asked Jan 23, 2014 by sreemathi.v

1 answer

Two coherent sources of light $S_1 $ and $S_2$ are placed in a line as shown. Two screens are placed perpendicular to $S_1S_2$ at A and B . It is observed that at point P a bright fringe is seen , then at point Q.

asked Jan 23, 2014 by meena.p

1 answer

$CO+H_2$ is known as

asked Jan 23, 2014 by sreemathi.v

1 answer

The volume of oxygen liberated at STP when 10ml of 15v-$H_2O_2$ decomposes

asked Jan 23, 2014 by sreemathi.v

1 answer

One ml of $H_2O_2$ solution gives 50ml of $O_2$ at NTP,so it is

asked Jan 23, 2014 by sreemathi.v

1 answer

A gas is found to obey the law $P =kV^{-2}$. The initial volume is $V_0$. If the gas expands to $4 V_0$ and if the initial temperature is $T_0$ what is its final temperature?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

The % of by weight of hydrogen $H_2O_2$ is

asked Jan 23, 2014 by sreemathi.v

1 answer

The approx concentration of $H_2O_2$ perhydrol is

asked Jan 23, 2014 by sreemathi.v

1 answer

A gas is found to obey the law $P^3V =$ constant. The initial temperature and volume are $T_0$ and $V_0$. If the gas expands to $2 V_0$ what happens to the internal energy?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

In a Young's double slit experiment light of $\lambda =5000\mathring{A}$ is incident on two slits. At a point P on the screen the two rays arriving have a path difference of $1 \times 10^{-6} \;m$. If the central fringe (zero) is maxima . What is formed at p.

asked Jan 23, 2014 by meena.p

1 answer

Weight of $H_2O_2$ present in 560ml of 20vol $H_2O_2$ solution is approx

asked Jan 23, 2014 by sreemathi.v

1 answer

The number of electrons involved in the manufacture of 1mole of $H_2O_2$ from 50% of $H_2SO_4$

asked Jan 23, 2014 by sreemathi.v

1 answer

Maximum intensity of the interference pattern in a young double slit experiment is I. Distance between slit is $d= 5 \lambda$ where $\lambda $ is wave length of the light source. What will be the intensity of light at a point directly in front of one of the slits. $(D= 50 \lambda)$

asked Jan 23, 2014 by meena.p

1 answer

The volume strength of $1N-H_2O_2$ solution is

asked Jan 23, 2014 by sreemathi.v

1 answer

50ml of certain sample of $H_2O_2$ gives 1200ml of $O_2$ at STP.The volume strength of $H_2O_2$ is

asked Jan 23, 2014 by sreemathi.v

1 answer

Strength of $2N$ $H_2O_2$ solution is approx

asked Jan 23, 2014 by sreemathi.v

1 answer

The volume of oxygen liberated at STP when 100ml of 15 volume $H_2O_2$ decomposes

asked Jan 23, 2014 by sreemathi.v

1 answer

The volume strength of $3N-H_2O_2$ solution is

asked Jan 23, 2014 by sreemathi.v

1 answer

The first diffraction minima due to a single diffraction is at $30^{\circ}$ for a light of wave length $5000A^{\circ}$ the width of slit is

asked Jan 23, 2014 by meena.p

1 answer

In $10^5$g of a sample of water contained 16.2g of $Ca(HCO_3)_2$ then the hardness is

asked Jan 23, 2014 by sreemathi.v

1 answer

If 1000g of a water sample contains 10g of $CaCO_3$ then the hardness of that water sample is

asked Jan 23, 2014 by sreemathi.v

1 answer

The weight of one mole of heavy water is

asked Jan 23, 2014 by sreemathi.v

1 answer

A sample of hard water contains 68ppm of $CaSO_4$,then the hardness of the same sample of water is

asked Jan 23, 2014 by sreemathi.v

1 answer

The percentage of deuterium in heavy water

asked Jan 23, 2014 by sreemathi.v

1 answer

In $H_2O_2$ molecule the $O-O$ bond length is

asked Jan 23, 2014 by sreemathi.v

1 answer

Hyperol is a addition product of $H_2O_2$ with

asked Jan 23, 2014 by sreemathi.v

1 answer

A double convex lens $(\mu =1.5) $ has its focal length 10 cm. What will be its focal length if it is immersed in liquid of $(\mu_1=\large\frac{4}{3})$

asked Jan 23, 2014 by meena.p

1 answer

The wavelength of $m^{th}$ line Balmer series for an orbital is $4103 A^{\large\circ}$. What is the value of $m$?

asked Jan 23, 2014 by sharmaaparna1

1 answer

Which of the following is reduced by $H_2O_2$ in acid medium

asked Jan 23, 2014 by sreemathi.v

1 answer

Which of the following is linear molecule

asked Jan 23, 2014 by sreemathi.v

1 answer

An aqueous solution of $H_2O_2$ is

asked Jan 23, 2014 by sreemathi.v

1 answer

A reaction of $H_2O_2$ with urea is example of

asked Jan 23, 2014 by sreemathi.v

1 answer

At a pressure 68mm.$H_2O_2$ boils at temperture

asked Jan 23, 2014 by sreemathi.v

1 answer

The objective of a telescope has a diameter 5 cm. What is the angular seperation in radius of two starts which can be resolved by the telescope when light of $3000 A^{\circ}$ is used.

asked Jan 23, 2014 by meena.p

1 answer

$H_2O_2+H_2O\rightarrow H_3O^-+HO_2^-$ the reaction indicates

asked Jan 23, 2014 by sreemathi.v

1 answer

Which of the following is oxidized by $H_2O_2$ in the alkaline medium

asked Jan 23, 2014 by sreemathi.v

1 answer

Ask Questions, Get Answers