Recent questions tagged q67

A force that does not work must be velocity dependent force. Is this statement true or false

asked Jul 30, 2015 by meena.p

1 answer

State tangent law in magnetism.

asked Jul 20, 2015 by meena.p

1 answer

A storage battery of emf $8.0 V$ and internal resistance $0.5 \Omega$ is being changed by a $120\;V$ DC supply using a series resistor of $15. 5 \Omega$ What is the terminal voltage of the battery during changing ?

asked Jul 1, 2015 by meena.p

1 answer

The maximum distance of a point on the graph of the function $y=\sqrt 3\sin x+\cos x$ from $x$-axis is ________

asked May 20, 2014 by sreemathi.v

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In which of the following reactions $H_2O_2$ acts as a reducing agent ?

asked Apr 7, 2014 by sreemathi.v

1 answer

Which functional group participate in disulphide bond formation in proteins

asked Mar 30, 2014 by thanvigandhi_1

1 answer

If the bond dissociation energies of $XY, X_2 \: and \: Y_2$(all diatomic molecules) are in the ratio of 1:1:0.5 and $ \Delta H_f $ for the formation of XY is -200 kJ/mol. The bond dissociation energy of $X_2$ will be

asked Mar 18, 2014 by thanvigandhi_1

1 answer

Thomas stag is

asked Mar 18, 2014 by meena.p

1 answer

Addition polymerisation is otherwise called

asked Mar 12, 2014 by thanvigandhi_1

1 answer

The polarisability of the halide ions in the salts $CaX_2$ is in the order of

asked Mar 7, 2014 by sreemathi.v

1 answer

Find the amplitude of the electric field in a parallel beam of light of intensity $2\: W/m^2$

asked Mar 1, 2014 by thanvigandhi_1

1 answer

Refer the below figure: Compound on hydrolysis in aqueous acetone will give,

asked Feb 25, 2014 by meena.p

1 answer

What would be the major product of the following reaction?

asked Feb 24, 2014 by sreemathi.v

1 answer

An evacuated glass vessel weighs 50.0g when empty 148.0 g when filled with a liquid of density $0.98gmL^{-1}$ and 50.5g when filled with an ideal gas at 760mm Hg of 300K.Determine the molecular weight of the gas.

asked Feb 20, 2014 by sharmaaparna1

1 answer

$CuSO_4$ solution(250ml) was electrolysed using a platinum anode and a copper cathode.At constant current of 2mA was passed for 16 minutes.It was found that after electrolysis the absorbance of this solution was reduced to 50% of its original value.Then the concentration of copper sulphate in solution to begin with is

asked Feb 17, 2014 by sreemathi.v

1 answer

Total vapour pressure of mixture of 1 mole $X(P_x^0=150torr)$ and 2 mol Y$(P_y^0=240torr)$ is 210mm.In this case

asked Feb 14, 2014 by sreemathi.v

1 answer

Find solution : $\large\frac{dy}{dx}$$=y (x^2y^2-1)$

asked Feb 6, 2014 by meena.p

1 answer

Find the length of tangent,subtangent,normal and subnormal to $y^2=4ax$ at $(at^2,2at)$

asked Feb 6, 2014 by sreemathi.v

1 answer

(Crystal Field Theory) How many unpaired electrons are there in a strong field iron(II) octahedral complex?

asked Feb 3, 2014 by sreemathi.v

1 answer

Stainless steel does not rust because

asked Jan 30, 2014 by sreemathi.v

1 answer

Which of the following metals cannot give flame tests?

asked Jan 28, 2014 by sreemathi.v

1 answer

The mean of a set of observation is $ \overline x$. If each observation is divided by $ a, a \neq 0$ and then is increased by 10, then mean of the new set is

asked Jan 26, 2014 by thanvigandhi_1

1 answer

Which of the following is not a true peroxide

asked Jan 24, 2014 by sreemathi.v

1 answer

The non-viable particulate is among the following is

asked Jan 21, 2014 by sreemathi.v

1 answer

The ionization enthalpy of hydrogen atom is $1.312\times 10^6\;Jmol^{-1}$.The energy required to excite the electron in the atom from $n=1$ to $n=2$ is

asked Jan 13, 2014 by sreemathi.v

1 answer

How many two digit numbers are divisible by 4?

asked Jan 5, 2014 by yamini.v

1 answer

If $\overrightarrow a,\overrightarrow b,\overrightarrow c$ are position vectors of three non collinear points $A,B,C$ respectively, then the shortest distance of $A$ from $BC$ is ?

asked Jan 5, 2014 by rvidyagovindarajan_1

1 answer

$\lim\limits_{x\to\Large\frac{\pi}{6}}\large\frac{3\sin x-\sqrt 3\cos x}{6x-\pi}$ equals

asked Dec 24, 2013 by sreemathi.v

1 answer

$\int \limits_0^a x dx < a+4$ then

asked Dec 17, 2013 by meena.p

1 answer

Standard free energies of formation ( in kJ / mol ) at 298 K are -237.2, -394.4 and -8.2 for $ H_2O(I) , CO_2(g) \: and \: pentane (g) $ respectively. The value of $ E^{\circ}_{cell}$ for the pentane oxygen fuel cell is :

asked Dec 17, 2013 by thanvigandhi_1

0 answers

" Bombay Duck " is :

asked Dec 9, 2013 by thanvigandhi_1

0 answers

In poultry the disease Coryza is caused by

asked Dec 5, 2013 by thanvigandhi_1

0 answers

If $ |\overrightarrow a+\overrightarrow b|=|\overrightarrow a|$, then the angle between $2\overrightarrow a+\overrightarrow b$ and $\overrightarrow b$ is ?

asked Nov 29, 2013 by rvidyagovindarajan_1

1 answer

Borazole is also known as

asked Nov 28, 2013 by sreemathi.v

1 answer

$pK_{a1}$ and $pK_{a2}$ of $H_2CO_3$ are 6.38 and 10.26 respectively. The $pH$ of 1 M and 0.1 M $NaHCO_3$ are

asked Nov 27, 2013 by mosymeow_1

1 answer

The cervical vertebrae in birds are :

asked Nov 26, 2013 by thanvigandhi_1

1 answer

Which one of the following statements is not true with reference to the genes of eukaryotic animals?

asked Nov 14, 2013 by thanvigandhi_1

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A stone thrown upwards, has its equation of motion $s=490t-4.9t^2$. Then the maximum height reached by it , is:

asked Nov 13, 2013 by meena.p

1 answer

If 0 is the angle between the curves $xy=2$ and $x^2+4y=0$ and $x^2+4y=0$, then $\tan \theta$ is equal to :

asked Nov 6, 2013 by meena.p

1 answer

Match the following

asked Oct 30, 2013 by thanvigandhi_1

1 answer

The total ionic strength (total molarity of all ions) Containing 0.1m of $CuSO_4$ and 0.1m of $Al_2(SO_4)_3$ is

asked Oct 29, 2013 by sreemathi.v

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