Recent questions tagged class11

Given the following statement: All doors are windows. Some windows are clips. Now, consider the claims: C1 :Some clips, if they are doors, they are also windows C2: All clips which are not widows are also not doors. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

asked Jan 21, 2014 by thanvigandhi_1

1 answer

Given the following statement: Some paints are red. AIl red which are paints are yellow. Now, consider the claims: C1 :C1: Some paints are yellow. C2: Some yellow are red. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

asked Jan 21, 2014 by thanvigandhi_1

0 answers

Given the following statement: Statements: No shoe is a chappal. Some chappals are sandals. Now, consider the claims: C1: Some sandals are not chappals.. C2: Sandals which are not chappals are shoes. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

asked Jan 21, 2014 by thanvigandhi_1

1 answer

Given the following statement: All doors are windows. Some windows are dips. Now, consider the claims: C1: Some clips are doors. C2: Some windows are doors. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

asked Jan 21, 2014 by thanvigandhi_1

0 answers

The ratio of the coefficient of $x^{10}$ in $(1-x^2)^{10}$ and the term independent of $x$ in $(x-\large\frac{2}{x}$$)^{10}$ is ?

asked Jan 21, 2014 by rvidyagovindarajan_1

1 answer

$ \displaystyle\sum_ {i=o} ^{{m} ^{10}} C_i ^{20}C_{m-i}$ is maximum when $m=?$

asked Jan 21, 2014 by rvidyagovindarajan_1

1 answer

If $A,B,C$ are three points on $x\:axis,\:y\:axis\:and\:z\:axis$ respectively which are at the distances $a,b,c$ from origin respectively and $P$ is a point which is equidistant from $A,B,C,O$ then the coordinates of $P$ is?

asked Jan 21, 2014 by rvidyagovindarajan_1

1 answer

Which of the following is not a false statement?

asked Jan 21, 2014 by thanvigandhi_1

1 answer

Which of the following is a true statement?

asked Jan 21, 2014 by thanvigandhi_1

1 answer

Find $\frac{1}{3}+\frac{1}{15}+\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}$ +....upto n terms

asked Jan 21, 2014 by yamini.v

1 answer

Let A={2,3,5,7}. For which of the sets, truth value is true?

asked Jan 21, 2014 by thanvigandhi_1

1 answer

If $1$, $log_{b}^{a}$, $log_{c}^{b}$, $-15\;log_{a}^{c}$ are in AP, then

asked Jan 21, 2014 by yamini.v

1 answer

$p, q, r$ are three unequal numbers in AP. If $q-p$, $r-q$ and $p$ are in GP, the $p\;:\;q\;:\;r$ equals

asked Jan 21, 2014 by yamini.v

1 answer

Catalytic converters are used in

asked Jan 21, 2014 by sreemathi.v

1 answer

$NO_2$ combines with atmospheric moisture to form mixture of $2NO_2+H_2O\rightarrow y + HNO_3$.The y is

asked Jan 21, 2014 by sreemathi.v

1 answer

$NO_2$ combines with atmospheric moisture to form mixture of $2NO_2+H_2O\rightarrow x+y$.The x is

asked Jan 21, 2014 by sreemathi.v

1 answer

For an AP with first term a and sum of first m terms 0, the sum of next n terms will be

asked Jan 21, 2014 by yamini.v

1 answer

$SO_2+H_2O\rightarrow H_2SO_3$. $\quad H_2SO_3$ is also known as

asked Jan 21, 2014 by sreemathi.v

1 answer

$SO_2+H_2O\rightarrow x$.The $x$ is

asked Jan 21, 2014 by sreemathi.v

1 answer

If p, q, r are in increasing AP, then common difference will be

asked Jan 21, 2014 by yamini.v

1 answer

Sinks of carbon monoxide $2CO+O_2\qquad \underrightarrow {soil}\qquad x$.$CO+3H_2\qquad\underrightarrow{soil}\qquad y+z$.The $z$ in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

Sinks of carbon monoxide $2CO+O_2\qquad \underrightarrow {soil}\qquad x$.$CO+3H_2\qquad\underrightarrow{soil}\qquad y+z$.The $y$ in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

If the numbers $a, b, c, d, e$ are in AP, the value of $a-4b+6c-4d+e$ is

asked Jan 21, 2014 by yamini.v

1 answer

Sinks of carbon monoxide $2CO+O_2\qquad \underrightarrow {soil}\qquad x$.$CO+3H_2\qquad\underrightarrow{soil}\qquad y+z$.The $x$ in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

In Nitrogen fixation $N_2\qquad\underrightarrow {Nitrogenase}\qquad x \rightarrow NO_2^-\qquad\underrightarrow{\text{In soil}}\qquad y$.The y in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

Sum of 20 terms of the series 1+2+3+4+5+8+7+16+9+....... is

asked Jan 21, 2014 by yamini.v

1 answer

In Nitrogen fixation $N_2\qquad\underrightarrow {Nitrogenase}\qquad x \rightarrow NO_2^-\qquad\underrightarrow{\text{In soil}}\qquad y.$.The x in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

The sum $1+\frac{3}{x}+\frac{9}{x^2}+\frac{27}{x^3}+....\infty$, ($x\neq\;0$) is finite if

asked Jan 21, 2014 by yamini.v

1 answer

Organic matter+$O_2\qquad\underrightarrow{\text{Aerobic organisms}}\qquad x+y$.The $y$ in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

Organic matter+$O_2\qquad\underrightarrow{\text{Aerobic organisms}}\qquad x+y$.The $x$ in the equation is

asked Jan 21, 2014 by sreemathi.v

1 answer

If the numbers $\;1,x^2,6-x^2\;$ are in GP , then value of $x$ is :

asked Jan 21, 2014 by yamini.v

1 answer

If 20 is divided into four parts which are in AP such that ratio of product of first and fourth part and product of second and third part is 2:3, then the largest part is

asked Jan 21, 2014 by yamini.v

1 answer

$\displaystyle\sum_{r=1}^{n}\;\frac{r}{(r+1)!}=$

asked Jan 21, 2014 by yamini.v

1 answer

Sum of $\;\frac{1}{1.2.3.4}+\frac{1}{2.3.4.5}+\frac{1}{3.4.5.6}+\;.....\;upto\;\infty\;is$

asked Jan 21, 2014 by yamini.v

1 answer

Tajmahal is effected by

asked Jan 21, 2014 by sreemathi.v

1 answer

Poisonous gas present in the exhaust fumes of an automobile is

asked Jan 21, 2014 by sreemathi.v

1 answer

The loss or reduction of chlorophyl in leaves is termed as

asked Jan 21, 2014 by sreemathi.v

1 answer

The non-viable particulate is among the following is

asked Jan 21, 2014 by sreemathi.v

1 answer

If $j,k,l$ are in AP $p,q,r$ in HP and $jp,kq,lr$ in $GP$ , then $\;\frac{p}{r}+\frac{r}{p}\;is\;equal\;to:$

asked Jan 21, 2014 by yamini.v

1 answer

Which of the following is not a air pollutant?

asked Jan 21, 2014 by sreemathi.v

1 answer

Which of the reason is cause to premature delivery

asked Jan 21, 2014 by sreemathi.v

1 answer

Carcinogens which can cause

asked Jan 21, 2014 by sreemathi.v

1 answer

Which of the following is carcinogenic

asked Jan 21, 2014 by sreemathi.v

1 answer

Let $\;a_{r}=\int\limits_{0}^{\frac{\pi}{4}}\;tan^{r}\;x\;dx$ , then $\;a_{1}+a_{3}\;,a_{2}+a_{4}\;,a_{3}+a_{5}\;$ are in

asked Jan 21, 2014 by yamini.v

1 answer

Fish die in water bodies polluted by sewage due to

asked Jan 21, 2014 by sreemathi.v

1 answer

$(1-2y)\;(1+3x+9x^2+27x^3+81x^4+243x^5+729x^6)$ = $(1-64y^6)$, $(y\;\neq\;1)$, then $\frac{x}{y}$ is

asked Jan 21, 2014 by yamini.v

1 answer

Chief source of soil and water pollution is

asked Jan 21, 2014 by sreemathi.v

1 answer

Let $a_{1}+a_{2}+a_{3}+\;......$ be terms of an AP. If $\;\frac{S_{p}}{S_{q}}=\frac{p^2}{q^2}\;then\;\frac{a_{7}}{a_{14}} =$

asked Jan 21, 2014 by yamini.v

1 answer

The smog is essentially caused by presence of

asked Jan 21, 2014 by sreemathi.v

1 answer

Which of the following is true for london smog?

asked Jan 21, 2014 by sreemathi.v

1 answer

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