Recent questions tagged q1

Carnalite is an example of

asked Jan 31, 2014 by sreemathi.v

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Liquid element(metal) among d-block is

asked Jan 29, 2014 by sreemathi.v

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Natron is a mineral whose formula represented

asked Jan 27, 2014 by sreemathi.v

1 answer

In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art?

asked Jan 22, 2014 by thanvigandhi_1

1 answer

An air bubble is at the bottom of the lake at $40\;m$ deep where the temperature is $0^{\circ}C$. The bubble rises to the surface where the temperature is $20^{\circ}C$ If it's volume at the bottom is $50\;cm^3$, what is its volume at the surface?

asked Jan 22, 2014 by balaji.thirumalai

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The lightest element in the periodic table is

asked Jan 22, 2014 by sreemathi.v

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Identify the secondary pollutant among the following

asked Jan 20, 2014 by sreemathi.v

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Which of the following statements do not convey the same meaning as the statement-A “If a natural number is odd, then its square is also odd.”

asked Jan 18, 2014 by thanvigandhi_1

1 answer

Which of the following sentences is a statement ?

asked Jan 17, 2014 by thanvigandhi_1

1 answer

Given the $\lambda$ values for violet light ($\lambda=4.10\times 10^{-5}cm)$ and red light($\lambda=6.56\times 10^{-5}cm$), which of the following is true about the ratio of energies carried by them and their frequencies?

asked Jan 9, 2014 by sreemathi.v

1 answer

A man is known to speak the truth in 75% cases. He throws a die and reports that it is a five. The probability that it is actually a five is

asked Jan 2, 2014 by thanvigandhi_1

1 answer

If A and B are two events such that $ P ( A \cup B) = \large\frac{5}{6}, \: P ( A \cap B ) = \large\frac{1}{3} \: and \: P(B') = \large\frac{1}{2}$ then events A and B are

asked Jan 2, 2014 by thanvigandhi_1

1 answer

Two fair coins are tossed. What is the probability that at least one head occurs.

asked Jan 2, 2014 by thanvigandhi_1

1 answer

In a GP, the first term is $312\large\frac{1}{2}$, the common ratio is $\large\frac{1}{2}$. Find the sum of the series to $\infty$ terms.

asked Dec 30, 2013 by yamini.v

1 answer

Let $f(x)=\left\{\small\begin{array}{1 1}(x-1)^2\sin\large\frac{1}{(x-1)}-\normalsize |x|&ifx\neq 1\\-1&if\;x=1\end{array}\right.$ be a real valued function. Then the set of points where $f(x)$ is not differentiable is

asked Dec 20, 2013 by sreemathi.v

1 answer

The distance between the parallel planes $2x+3y+4z=5\:\:and\:\:4x+6y+8z=12$ is ?

asked Dec 17, 2013 by rvidyagovindarajan_1

1 answer

Which two of the following five physical parameters have the same dimensions ?

asked Dec 14, 2013 by thanvigandhi_1

0 answers

Integrate $\int \limits_0^1 x^m (1-x)^n.dx$

asked Dec 11, 2013 by meena.p

1 answer

Calculate the E.M.F of the electrode-concentration cell : $H_2(P_1),HCl,H_2(P_2)$ at $25^{\large\circ}C$ if $P_1$ = 1atm and $P_2 = 0.25\;atm$.The E.M.F. 'E' is

asked Dec 10, 2013 by sreemathi.v

1 answer

Which are the species in which sulphur undergoes $sp^3$ hybridisation ?

asked Dec 9, 2013 by sreemathi.v

1 answer

Grass stem elongates after initial growth due to

asked Dec 6, 2013 by thanvigandhi_1

0 answers

Which of the following obeys the octet rule?

asked Dec 6, 2013 by sreemathi.v

1 answer

According to VSEPR theory, which of the following is non-linear molecule

asked Dec 6, 2013 by sreemathi.v

1 answer

Refer to the below equation:

asked Dec 4, 2013 by sreemathi.v

1 answer

Vinyl cyclopropane on reaction with HBr yields which of the following as major product

asked Dec 2, 2013 by sreemathi.v

1 answer

Clover leaf shaped nucleic acid is :

asked Dec 1, 2013 by thanvigandhi_1

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The general electronic configuration of p-block elements is

asked Nov 26, 2013 by sreemathi.v

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$l,m,n$ are the $p^{th},q^{th}$ and $r^{th}$ terms of a GP and all positive then $\begin{vmatrix}\log l&p&1\\\log m&q&1\\\log n&r&1\end{vmatrix}$ equals

asked Nov 25, 2013 by sreemathi.v

1 answer

In which of the following, the sepals, petals, stamens, carpels are in the ratio of 2 : 2 : 3 : 1

asked Nov 24, 2013 by thanvigandhi_1

1 answer

The earlier institute established at Pusa, is now called as

asked Nov 22, 2013 by thanvigandhi_1

0 answers

Let $p\lambda^4+q\lambda^3+r\lambda^2+s\lambda+t$ = $\begin{vmatrix}\lambda^3+3\lambda&\lambda-1&\lambda+3\\\lambda+1&-2\lambda&\lambda-4\\\lambda-3&\lambda+4&3\lambda\end{vmatrix}$ be an identity in $\lambda$ where $p,q,r,s$ and $t$ are constant. Then the value of $t$ is

asked Nov 21, 2013 by sreemathi.v

1 answer

As melting of ice is an _ process, supplying heat to the system shifts the equilibrium in the direction and viceversa.

asked Nov 13, 2013 by mosymeow_1

1 answer

The position of a particle at time t is given by the equation $x(t) =\large\frac{v_0}{A}$$(1-e^{At})\; v_0=$ constant and $A > 0$ . Dimensions of $v_0$ and $A$ respectively are:

asked Nov 13, 2013 by meena.p

0 answers

If $( x \in R: [x -|x|\;]=5)$ is equal to :

asked Nov 11, 2013 by meena.p

1 answer

Study the following lists

asked Nov 10, 2013 by thanvigandhi_1

0 answers

In Fischer-Ringe 's method of separation of nobles gas mixture from air, ................... is used:

asked Nov 8, 2013 by meena.p

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Names of units of some physical quantities are given in List I and their dimensions formulae are given in List- II. Match the correct pairs in the lists:

asked Nov 7, 2013 by meena.p

1 answer

If $f: R \to R$ is defined by $f(x) =x-[x]-\large\frac{1}{2}$ for $x \in R, $ where $[x]$ is the greatest integer not exceeding x, then $\bigg \{x \in R: f(x) =\frac{1}{2}\bigg\}$ is equal to :

asked Nov 5, 2013 by meena.p

1 answer

A mixture of $HCOOH$ and $H_2C_2O_4$ is heated with Conc.$H_2SO_4$.The gas produced is collected and on treating with KOH solution the volume of the gas decreases by $\large\frac{1}{6}$th.Calculate molar ratio of two acids in original mixture.

asked Oct 31, 2013 by sreemathi.v

1 answer

The standard reduction potentials of $Zn^{2-} |Zn,Cu^{2+}|Cu$ and $Ag^{+} | Cu\;and\;Ag^{+}|Ag$ are respectively $-0.76,0.34$ and $0.8\;V$. The following cells were constructed :

asked Oct 29, 2013 by meena.p

1 answer

Which of one of the following is a vector?

asked Oct 28, 2013 by rvidyagovindarajan_1

1 answer

If G.R.I and I denote capacity, resistance, inductance and electric current respectively, the quantities having the same dimensions of time are : $(1)CR ,\; (2)\;\large\frac{L}{R},\;(3)\;\sqrt {LC}, \;(4)\;LI^2$

asked Oct 28, 2013 by meena.p

1 answer

Study the following lists

asked Oct 25, 2013 by thanvigandhi_1

1 answer

If Q denotes the set of all rational numbers and $f\bigg(\large\frac{p}{q}\bigg)$$=\sqrt {p^2-q^2}$ for any $\large\frac{P}{q}$$ \in Q$ , then observe the following statements.

asked Oct 24, 2013 by meena.p

1 answer

Identify 'B' in the following reaction : $CH_2 = CH_2+HCl \longrightarrow A+ 2[H] \longrightarrow B + HCl $

asked Oct 23, 2013 by meena.p

1 answer

116 mg of a compound on vaporization in Victor mayer's apparatus displaces 44.8 ml of air measured at STP.The molecular mass of the compound is

asked Oct 22, 2013 by sreemathi.v

1 answer

Some physical constants are given in List-I and their dimensional formulae are given in List- II. Match the following

asked Oct 22, 2013 by meena.p

1 answer

3g of hydrocarbon on combustion with 11.2g of oxygen produce 8.8g of $CO_2$ and 5.4g of $H_2O$.The data illustrates the law of

asked Oct 22, 2013 by sreemathi.v

1 answer

The solution set of the system of equational $x+y=\large\frac{2\pi}{3}$$,\cos x+\cos y=\large\frac{3}{2}$ where $x$ and $y$ are real is

asked Oct 17, 2013 by sreemathi.v

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

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