Recent questions tagged jeemain

The amino acid binding site of tRNA is

asked Oct 16, 2013 by thanvigandhi_1

1 answer

If $x= \large\frac{1}{2} \bigg(\sqrt 7+\large\frac{1}{\sqrt 7}\bigg)$ then $\large\frac{\sqrt {x^2-1}}{x- \sqrt {x^2-1}}=$

asked Oct 16, 2013 by meena.p

0 answers

Two different plants associated with the discovery of two different phytohormones having common biosynthetic precursor exhibit one of the following character each

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Given that $a,b \in \{0,1,2,.........,9\}$ with $ a+b \neq 0$ and that $\bigg(a, \large\frac{b}{10}$$ \bigg)^x=\bigg(\large\frac{a}{10},\frac{b}{100}\bigg)^y$$-1000$ Then $\large\frac{1}{x}-\frac{1}{y}=$

asked Oct 16, 2013 by meena.p

1 answer

Find out the correct combination concerning the components of photosynthetic electron transport, location in relation to thylakoid and action

asked Oct 16, 2013 by thanvigandhi_1

1 answer

If $f:[-6,6] \to \Re$ is defined by $f(x)=x^2-3$ for $x \in \Re$, then $(f0f0f)(-l)+(f0f0f)(0)+(f0f0f)(l)=$

asked Oct 16, 2013 by meena.p

1 answer

If $f: \Re \to \Re$ and $g: \Re \to \Re$ are defined by $f(x) - | x |$ and $g(x)=[x - 3]$ for $ x \in \Re$, then $\bigg \{ g(f(x)):-\large\frac{8}{5} $$ < x < \large\frac{8}{5} \bigg \} -$

asked Oct 16, 2013 by meena.p

1 answer

If $f: R \to C $ is defined by $f(x)=e^{2ix}$ for $x \in R$ then, f is (Where C denotes the set of all complex numbers)

asked Oct 16, 2013 by meena.p

1 answer

One per cent composition of an organic compound $\underline {A}$ is carbon: $85.71 \;\%$ and hydrogen $14.29\; \%$. It's vapour density is 14. Consider the following reaction sequence :

asked Oct 16, 2013 by meena.p

1 answer

What are $\underline{A},\underline {B}, \underline {C}$ in the following reactions ?

asked Oct 16, 2013 by meena.p

1 answer

Simplify :$\large\frac{\sin 7x-\sin 3x-\sin 5x+\sin x}{\cos 7x+\cos 3x-\cos 5x-\cos x}$

asked Oct 16, 2013 by sreemathi.v

1 answer

Study the following lists

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Which one of the following is most effective in causing the coagulation of an $As_2S_3$ sol?

asked Oct 16, 2013 by meena.p

1 answer

Study the following list

asked Oct 16, 2013 by thanvigandhi_1

1 answer

If $\large\frac{\sin^4\theta}{2}+\frac{\cos^4\theta}{2}=\frac{1}{5}$ then

asked Oct 16, 2013 by sreemathi.v

1 answer

W.L. Johannsen conducted pure line selection experiments on one of the bean varieties. Which of the following characters are associated with this plant?

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Calculate $\Delta H^{\circ}$ for the reaction: $Na_2O+SO_3 \longrightarrow Na_2SO_4$ given the following :

asked Oct 16, 2013 by meena.p

1 answer

$20\; ml$ of $0.1\;M$ acetic acid is mixed with $50\;ml$ of Potassium acetate. $K_a$ of Acetic acid = $1.8 \times 10^{-5}$ at $27^{\circ}C$. The concentration of Potassium acetate if pH of the mixture is $4.8$:

asked Oct 16, 2013 by meena.p

1 answer

The concentration of an organic compound in chloroform is $6.15$g per $100\;mL$ of solution. A portion of this solution in a $5\;cm$ polarimeter tube causes an observed rotation of $-1.2^{\circ}.$ What is the specific rotation of the compound ?

asked Oct 16, 2013 by meena.p

1 answer

If $\tan\theta+\tan\big(\theta+\large\frac{\pi}{3}\big)$$+\tan\big(\theta+\large\frac{2\pi}{3}\big)$$=3$ then which of the following is equal to 1.

asked Oct 16, 2013 by sreemathi.v

1 answer

For the first order reaction at $27^{\circ}C, $ the radio of time required for $75 \%$ completion to $25 \%$ completion of reaction is :

asked Oct 16, 2013 by meena.p

1 answer

The equilibrium constant for the given reaction is 100 $N_2 +2O_2 \rightleftharpoons 2NO_2$ What is the equilibrium for the reaction given below : $NO_2 \rightleftharpoons \large\frac{1}{2}$$ N_2+O_2$

asked Oct 16, 2013 by meena.p

1 answer

The interval in which $x$ must lie so that the greatest term in the expansion of $(1+x)^{2n}$, ($x>0$) has greatest coefficient is

asked Oct 16, 2013 by rvidyagovindarajan_1

1 answer

$(1+x)^n-nx-1$ is divisible by ?

asked Oct 16, 2013 by rvidyagovindarajan_1

1 answer

Simplify : $\large\frac{\sin\big(\Large\frac{3\pi}{2}-\theta\big)\cos\big(\Large\frac{\pi}{2}+\theta\big)}{\tan\big(\Large\frac{\pi}{2}+\theta\big)}-\frac{\sin\big(\Large\frac{3\pi}{2}-\theta\big)}{\sec\big(\pi+\theta\big)}$

asked Oct 16, 2013 by sreemathi.v

1 answer

$\cot^{-1}\big(\sqrt{\cos\alpha}-\tan^{-1}(\sqrt{\cos\alpha}\big)=x$ then $\sin x=?$

asked Oct 16, 2013 by sreemathi.v

1 answer

Study the following lists

asked Oct 16, 2013 by thanvigandhi_1

1 answer

The remainder when $2^{2003}$ is divided by $17$ is ?

asked Oct 16, 2013 by rvidyagovindarajan_1

1 answer

Identify the wrong answer

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Evaluate :$\large\frac{1+\sin\theta-\cos\theta}{1+\sin\theta+\cos\theta}$

asked Oct 16, 2013 by sreemathi.v

1 answer

Which of the following character is not associated in a plant having a single cotyledon in a seed, tendrillar stipules and adventitious root system?

asked Oct 16, 2013 by thanvigandhi_1

1 answer

A student observed four plants (A, B, C, D). The number of stamens in a flower of 'A' is equal to those of a flower of 'B' . Out of the ten stamens arranged in two bundles in a flower of 'C', the stamen number in the bundle which possesses most of the stamens is three times to that of inner whorl of a flower of 'A'. In 'D' , the number of stamens is equal to those present in the inner whorl of plant 'B'. Identify A,B,C and D plants respectively.

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Find $\cos\tan^{-1}\sin\cot^{-1}x$

asked Oct 16, 2013 by sreemathi.v

1 answer

Identify the correct statements

asked Oct 16, 2013 by thanvigandhi_1

0 answers

If $\tan\theta=\large\frac{b}{a}$ then find the value of $a^2\cos 2\theta+b\sin 2\theta$

asked Oct 16, 2013 by sreemathi.v

1 answer

Identify the correct sequence of plants in the order of characters given below :

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Sum of $(n+1)$ terms of the series $\large\frac{^nC_0}{2}$ - $\frac{^nC_1}{3}$ + $\frac{^nC_2}{4}$ - ...... = ?

asked Oct 16, 2013 by rvidyagovindarajan_1

1 answer

Which of the following statement is not related to Dolichos?

asked Oct 16, 2013 by thanvigandhi_1

1 answer

The value of $\cot\sum\limits_{n=1}^{23}\cot^{-1}\big(1+\sum\limits_{k=1}^n 2k\big)$ is

asked Oct 16, 2013 by sreemathi.v

1 answer

Identify the correct combination of characters found in Solanum

asked Oct 16, 2013 by thanvigandhi_1

1 answer

Identify the correct pair of plants with odd number of leaflets in a compound leaf

asked Oct 16, 2013 by thanvigandhi_1

1 answer

The value of $\sin 36^{\large\circ}\sin 72^{\large\circ}\sin 108^{\large\circ}\sin 144^{\large\circ}$ is equal to

asked Oct 16, 2013 by sreemathi.v

1 answer

If $\sin\alpha\sin\beta+1=0$.Find $1+\cot \alpha\tan\beta=0$

asked Oct 16, 2013 by sreemathi.v

1 answer

If $A$ and $B$ are positive acute angles and $\cos A=\large\frac{1}{7},$$\cos B=\large\frac{13}{14}$ then find $A-B$

asked Oct 16, 2013 by sreemathi.v

1 answer

If $p$ and $q$ are +ve real numbers such that $p^2+q^2=1$ then the maximum value of $(p+q)$ is

asked Oct 16, 2013 by sreemathi.v

1 answer

Study the following lists

asked Oct 15, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 15, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 15, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 15, 2013 by thanvigandhi_1

1 answer

Which of the following is correct?

asked Oct 15, 2013 by thanvigandhi_1

1 answer

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