Recent questions tagged unit8

Surgical removal of thymus of a new born shall result in failure to produce

asked Jul 10, 2014 by sreemathi.v

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Cells involved in immune mechanism are

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Antibody formation and immunity production by globulin protein is found in

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Study of interaction of antigen and antibody in blood is

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Both B and T-cells of immune system are produced in

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Vaccines produced through genetic engineering are safe as

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Passive immunity is obtained through injecting

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Rejection of transplanted organs is due to

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Active immunity is got from

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Who discovered vaccine against smallpox

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Accumulation of excess fluid in tissue spaces is

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Pathogens are destroyed by

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Edward jenner discovered

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Humoral immunity is due to

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Immunity acquired after an infection is

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An antigen is

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Asthma is a respiratory disorder due to

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An antibody is

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The transitional metal which form green compound in +3 oxidation state and yellow orange compound in +6 oxidation state is

asked Jan 30, 2014 by sreemathi.v

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Least reactive metal is

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Which is most reactive metal

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Stainless steel does not rust because

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Lanthanoids are

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Which statement is true about the transitional elements

asked Jan 30, 2014 by sreemathi.v

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The equivalent weight of potassium permanganate for acid solution is

asked Jan 30, 2014 by sreemathi.v

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Which of the following is not true for transition metals.

asked Jan 30, 2014 by sreemathi.v

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The highest oxidation state of will be

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Which of the following is the weakest reducing agent

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Variable valency is shown by

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Lanthanides and actinides resemble in

asked Jan 30, 2014 by sreemathi.v

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Which forms coloured salts.

asked Jan 30, 2014 by sreemathi.v

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Which occurs in nature in free state

asked Jan 30, 2014 by sreemathi.v

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Which of the following statement is not correct.

asked Jan 30, 2014 by sreemathi.v

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Which one of the following is reduced by hydrogen peroxide in acid medium

asked Jan 30, 2014 by sreemathi.v

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Which one of the following is highest melting halide.

asked Jan 30, 2014 by sreemathi.v

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$\lim\limits_{n\to \infty}\large\frac{1}{n}$$\sum\limits_{r=1}^{2n}\large\frac{r}{\sqrt{n^2+r^2}}$ equals

asked Jan 3, 2014 by sreemathi.v

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If $f(x)=[x^2]-[x]^2$ where [.] is the largest integer function then

asked Jan 2, 2014 by sreemathi.v

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If $f(x)=3x^{10}-7x^8+5x^6-21x^3+3x^2-7$ then value of $\lim\limits_{\alpha \to 0}\large\frac{f(1-\alpha)-f(1)}{\alpha^3+3\alpha}$ is

asked Jan 2, 2014 by sreemathi.v

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$f(x)=\sin^{-1}\big(\large\frac{2x}{1+x^2}\big)$ is differentiable on

asked Jan 2, 2014 by sreemathi.v

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If $\big(\large\frac{2+\sin x}{1+y}\big)\frac{dy}{dx}$$=-\cos x,y(0)=1$ then $y\big(\large\frac{\pi}{2}\big)=$

asked Jan 2, 2014 by sreemathi.v

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If $\lim\limits_{x\to 0}\large\frac{((a-n)nx-\tan x)\sin nx}{x^2}$$=0$ where $n$ is a non zero real number, then $a$ is equal to

asked Jan 2, 2014 by sreemathi.v

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Which of the following function is differentiable at $x=0$?

asked Jan 2, 2014 by sreemathi.v

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Let $f:R\rightarrow R$ be such that $f(1)=3$ and $f'(1)=6$. Then $\lim\limits_{x\to 0}\big[\large\frac{f(1+x)}{f(1)}\big]^{\Large\frac{1}{x}}$ equals

asked Dec 31, 2013 by sreemathi.v

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The value of $\lim\limits_{x\to 0}\int\limits_{0^{x^2}}\large\frac{\cos t^2dt}{x\sin x}$ is

asked Dec 30, 2013 by sreemathi.v

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The number of points at which the function $f(x)=\large\frac{1}{\log|x|}$ is discontinuous is

asked Dec 24, 2013 by sreemathi.v

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Let $f : R\rightarrow R$ be a positive increasing function with $\lim\limits_{x\to 0}\large\frac{f(3x)}{f(x)}$$=1$. Then $\lim\limits_{x\to \infty}\large\frac{f(2x)}{f(x)}$ = ?

asked Dec 23, 2013 by sreemathi.v

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Let $f$ be differentiable for all $x$. If $f(1)=-2$ and $f'(x)\geq 2$ for $x\in [1,6]$ then

asked Dec 23, 2013 by sreemathi.v

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The value of $\lim\limits_{x\to 0}\large\frac{\int\limits_0^{x^2} \sec^2tdt}{x\sin x}$ is

asked Dec 23, 2013 by sreemathi.v

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The EMF of cell $Ag,AgCl$ in 0.1M $KCl\parallel sat\;NH_4NO_3\parallel 0.1M\;AgNO_3,Ag$ is $0.45\;volt$ at $25^oC$.Calculate solubility product & solubility of $AgCl(0.1M\; KCl$ is $85\% $dissociated & $0.1M$ $AgNO_3$ is $82\%$ dissociated)

asked Dec 12, 2013 by sreemathi.v

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At $25^oC$ the specific conductance of a saturated solution of $AgCl$ is $2.68\times 10^{-4}Sm^{-1}$ and that of water with which the solution was made is $0.86\times 10^{-4}Sm^{-1}$.If molar conductances at infinite dilution of $AgNO_3,HNO_3$ and $HCl$ are respectively,$1.33$$\times 10^{-4},421\times 10^{-4}$ and $426\times10^{-4}Sm^2mol^{-1}$,calculate solubility of $AgCl$in grams per $dm^3$ in water at given temperature

asked Dec 12, 2013 by sreemathi.v

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