Recent questions tagged 82

$\alpha-particle$ consists of :

asked Jul 8, 2019 by pady_1

1 answer

Which of the following is the strongest Lewis acid ?

asked Dec 19, 2018 by pady_1

0 answers

n-octane and n-nonane have :

asked Dec 19, 2018 by pady_1

0 answers

Which one of the $VI$ group element has the highest catenation power ?

asked Dec 19, 2018 by pady_1

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In the ground state, an element has 13 electrons in M shell. The element is :

asked Dec 11, 2018 by pady_1

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Compound A given below is :

asked Dec 11, 2018 by pady_1

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According to the periodic law of elements, the variation in properties of elements is related to their :

asked Dec 11, 2018 by pady_1

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The compound that does not produce nitrogen gas by the thermal decomposition is :

asked Dec 11, 2018 by pady_1

0 answers

Which of the following molecules is least resonance stabilized ?

asked Dec 11, 2018 by pady_1

0 answers

The eccentricity of the hyperbola whose length of the latus rectum is equal to 8 and the length of its conjugate axis is equal to half of the distance between its foci, is :

asked Dec 11, 2018 by pady_1

1 answer

An ellipse passes through the foci of the hyperbola, $9x^2 - 4y^2 = 36$ and its major and minor axes lie along the transverse and conjugate axes of the hyperbola respectively. If the product of eccentricities of the two conics is $\frac{1}{2}$ , then which of the following points does not lie on the ellipse ?

asked Dec 11, 2018 by pady_1

1 answer

Which one of the following bases is not present in DNA?

asked Dec 11, 2018 by pady_1

0 answers

A charge Q is uniformly distributed over a long rod AB of length L as shown in the figure. The electric potential at the point O lying at a distance L from the end A is:

asked Dec 11, 2018 by pady_1

0 answers

The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, Ka of this acid is :

asked Dec 11, 2018 by pady_1

0 answers

The structure of $IF_7$ is :

asked Dec 11, 2018 by pady_1

0 answers

A person is to count 4500 currency notes. Let $a_n$ denote the number of notes the counts in the $n^{th} $ minute. If $a_1 = a_2 = .......= a_{10} = 150$ and $a_{10}, a_{11}, ....$ are in A.P. with common difference $-2$, then the time taken by him to count all notes is

asked Dec 11, 2018 by pady_1

0 answers

Let $y$ be an implicit function of $x$ defined by $x^{2x} - 2x^{x} \cot y -1 =0$. Then $y'(1)$ equals

asked Nov 29, 2018 by pady_1

0 answers

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

asked Nov 29, 2018 by pady_1

0 answers

The cell $Zn|Zn^{2+} (1M) || Cu^{2+} (1M) | Cu \; (E^{\circ} cell = 1.10 V)$, was allowed to be completely discharged at 298 K. The relative concentration of $Zn^{2+}$ to $Cu^{2+} \begin{pmatrix} \frac{[Zn^{2+}]}{[Cu^{2+}]} \end{pmatrix} $ is :

asked Nov 29, 2018 by pady_1

0 answers

The correct order of increasing acid strength of the compounds : (A) $CH_2CO_2H$ (B) $MeOCH_2CO_2H$ (C) $CF_3CO_2H$ (D) is :

asked Nov 13, 2018 by pady_1

0 answers

Due to the presence of an unpaired electron free radicals are :

asked Nov 5, 2018 by pady_1

0 answers

Among $Al_2O_3, SiO_2, P_2O_3$ and $SO_2$ the correct order of acid strength is

asked Nov 5, 2018 by pady_1

1 answer

The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are

asked Aug 21, 2018 by pady_1

1 answer

Artificial selection to obtain cows yielding higher milk output represents :

asked Aug 21, 2018 by pady_1

1 answer

Which type of tissue correctly matches with its locations ?

asked Aug 21, 2018 by pady_1

1 answer

Filiform apparatus is characteristic feature of -

asked Aug 21, 2018 by pady_1

1 answer

Which one of the following is not a common component of Photochemical Smog?

asked Aug 20, 2018 by pady_1

2 answers

Nitrobenzene on reaction with $conc. HNO_3/H_2SO_4$ at $80 – 100^ºC$ forms which one of the following products?

asked Aug 20, 2018 by pady_1

1 answer

Identify the alloy containing a non-metal as a constituent in it.

asked Aug 20, 2018 by pady_1

1 answer

The complexes $[Co(NH_3)_6]$ $[Cr(CN)_6]$ and $[Cr(NH_3)_6]$ $[Co(CN)_6]$ are the examples of which type of isomerism ?

asked Aug 16, 2018 by pady_1

1 answer

The existence of two different coloured complexes with the composition of $[Co(NH_3)_4Cl_2]^+$ is due to

asked Jul 26, 2018 by pady_1

1 answer

Which of the following molecules acts as a Lewis acid ?

asked Jul 26, 2018 by pady_1

1 answer

The value of $K_{p1}$ and $K_{p2}$ for the reactions $X\rightleftharpoons Y + Z$ ....(1) and $A \rightleftharpoons2B$ ....(2) are in ratio of 9 : 1. If degree of dissociation o X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio :

asked Jul 26, 2018 by pady_1

0 answers

The d electron configuration of $Cr^{2+}, Mn^{2+}, Fe^{2+}$ and $Ni^{2+}$ are $3d^4$, $3d^5$, $3d^6$ and $3d^8$ respectively. Which one of the following aqua complex will exhibit the minimum paramagnetic behaviour ? (At. No. Cr = 24, Mn= 25, Fe = 26, Ni = 28)

asked Jul 26, 2018 by pady_1

1 answer

Which of the following pairs constitutes a buffer:-

asked Jul 25, 2018 by pady_1

1 answer

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids, is :-

asked Jul 24, 2018 by pady_1

1 answer

The maximum number of molecules is present in:-

asked Jul 24, 2018 by pady_1

1 answer

The basic character of the transition metal monoxides follows the order : $(Atomic \; nos. Ti = 22, V = 23, Cr = 24, Fe = 26)$

asked Jul 24, 2018 by pady_1

1 answer

Position of non polar & polar part in micelle : -

asked Jul 23, 2018 by pady_1

1 answer

In which of the following bond angle is maximum :

asked Jul 20, 2018 by pady_1

1 answer

Which ion is colourless :

asked Jul 20, 2018 by pady_1

1 answer

Number of significant number will be in following numbers : a)161 cm b)0.0161 c)1.61

asked Jun 15, 2018 by pady_1

1 answer

Man : Biography : : Nation : ?

asked Dec 31, 2015 by pady_1

1 answer

The bar graph shows the scores obtained when a die was rolled a number of times. If this information were displayed instead as a pie chart, what would be the angle of the sector of the pie chart representing the score of 2?

asked Dec 31, 2015 by pady_1

1 answer

Find the cost of painting square board of side 36 cm at the rate of $ 4 per sq. cm.

asked Dec 31, 2015 by pady_1

0 answers

Tom, Alan and Jerry are picking apples. Tom picks one apple every minute, Alan picks two apples every three minutes and Jerry picks four apples every three minutes. How many apples are picked in one hour?

asked Dec 31, 2015 by pady_1

1 answer

Diego deposited $ 10000 for 4 year at a rate of 6% p.a. Find the interest Diego got.

asked Dec 31, 2015 by pady_1

0 answers

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