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Questions >> JEEMAIN and NEET >> Chemistry

Chemistry

Oxydazation states of oxygen are :

asked Nov 27, 2013 by sreemathi.v

1 answer

The correct sequence is : For -Acidic Nature

asked Nov 27, 2013 by sreemathi.v

1 answer

$SF_6$ is more reactive than $TeF_6$.The above statement is

asked Nov 27, 2013 by sreemathi.v

1 answer

Bleaching powder formulae

asked Nov 27, 2013 by sreemathi.v

1 answer

$IF_7$ hybridization

asked Nov 27, 2013 by sreemathi.v

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$2NaOH+2F_2\rightarrow 2NaF+x+y$.$x$ & $y$ are

asked Nov 27, 2013 by sreemathi.v

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$CO+Cl_2\overset{sun\;light}{\rightarrow}$$x$. $x$ is

asked Nov 27, 2013 by sreemathi.v

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$CHCl_3$ is known as

asked Nov 27, 2013 by sreemathi.v

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Structure of $HClO_4$ is

asked Nov 27, 2013 by sreemathi.v

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Industrially chlorine is prepared

asked Nov 27, 2013 by sreemathi.v

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Bond angle of $H_2O$ is

asked Nov 26, 2013 by sreemathi.v

1 answer

Allotropes of oxygen are :

asked Nov 26, 2013 by sreemathi.v

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Shape of $H_2S$ is

asked Nov 26, 2013 by sreemathi.v

1 answer

How does stability of chalcogens vary

asked Nov 26, 2013 by sreemathi.v

1 answer

Lithium doesn't form Alum

asked Nov 26, 2013 by sreemathi.v

1 answer

DiBorane hybridazition is

asked Nov 26, 2013 by sreemathi.v

1 answer

Borax formulate :

asked Nov 26, 2013 by sreemathi.v

1 answer

The Reductance of 'ns' electrons towards participation in bond formation is known as

asked Nov 26, 2013 by sreemathi.v

1 answer

The structure of $N_2O$ is

asked Nov 26, 2013 by sreemathi.v

1 answer

The reducing nature of the hydrides

asked Nov 26, 2013 by sreemathi.v

1 answer

In the following which is correct in stability order

asked Nov 26, 2013 by sreemathi.v

1 answer

Name the metalloid present in V A Group

asked Nov 26, 2013 by sreemathi.v

1 answer

$NO$ belongs to which category?

asked Nov 26, 2013 by sreemathi.v

1 answer

Stability order of VA group hydrides is

asked Nov 26, 2013 by sreemathi.v

1 answer

What acts as a catalyst in cyanamids process

asked Nov 26, 2013 by sreemathi.v

1 answer

The Bond angle of Ammonia

asked Nov 26, 2013 by sreemathi.v

1 answer

Metallic nature in V-A elements

asked Nov 26, 2013 by sreemathi.v

1 answer

$NH_3$ can be prepared by

asked Nov 26, 2013 by sreemathi.v

1 answer

Which acid is manufactured by Ostwald's process

asked Nov 26, 2013 by sreemathi.v

1 answer

The general electronic configuration of p-block elements is

asked Nov 26, 2013 by sreemathi.v

1 answer

Degree of dissociation of an acid HCl is 95%. 0.192 g of the acid is present in 0.5 L of solution. The pH of the solution is

asked Nov 23, 2013 by mosymeow_1

1 answer

At a certain temperature, the value of $\rho K_w$ is 13.4 and the measured $\rho H$ of a soltuion is 7. The solution is

asked Nov 23, 2013 by mosymeow_1

1 answer

The pH of pure water at $80^\circ C$ will be

asked Nov 23, 2013 by mosymeow_1

2 answers

If the solubility of $Ag_2CrO_4$ is S mole/litre. Its solubility product is

asked Nov 23, 2013 by mosymeow_1

2 answers

For the percipitation of cations of group four in the qualitative analysis, the medium is made alkaline before passing $H_2S$ gas. The purpose of alkaline Solution is

asked Nov 23, 2013 by mosymeow_1

1 answer

$NH_4OH$ is a weak base but it becomes still weaker in the aqueous solution of

asked Nov 23, 2013 by mosymeow_1

1 answer

Let the solubilities of AgCl in $H_2O$, 0.01 M $CaCl_2$, 0.01 M NaCl and 0.05 M $AgNO_3$ be $S_1, S_2, S_3 and S_4$ respectively. What is the correct relationship between these quantities?

asked Nov 23, 2013 by mosymeow_1

1 answer

What is the decreasing order of strength of the bases $OH^-, NH_2^- , H-C\equiv C^-$ and $CH_3CH_2^-$ ?

asked Nov 23, 2013 by mosymeow_1

1 answer

Conjugate base of Hydrazoic acid is

asked Nov 23, 2013 by mosymeow_1

2 answers

In which of the following reactions does $NH_3$ acts as an acid?

asked Nov 23, 2013 by mosymeow_1

1 answer

Which of the following can act both as a Bronsted acid and a Bronsted base?

asked Nov 23, 2013 by mosymeow_1

2 answers

Which of the following is a Lewis acid?

asked Nov 23, 2013 by mosymeow_1

1 answer

According to the Lewis acid-base concept

asked Nov 23, 2013 by mosymeow_1

1 answer

Which equilibrium can be described as an acid-base reaction using Lewis acid-base definition but not using Bronsted and Lowry concept?

asked Nov 23, 2013 by mosymeow_1

1 answer

Which one of the following is a Bronsted acid but not a Bronsted base?

asked Nov 23, 2013 by mosymeow_1

1 answer

When ammonia is added to pure water, the concentration of which of the following species already present, will decrease

asked Nov 23, 2013 by mosymeow_1

1 answer

Given $NaSO_4.10H_2O (s) \rightleftharpoons NaSO_4 (s) + 10H_2O (g) ; K_p =4.08 \times 10^{-25} $ and vapour pressure of water at $0^\circ$C = 4.58 Torr. At what relative humidity will $Na_2SO_4$ be deliquescent when exposed to the air at $0^\circ$C ?

asked Nov 15, 2013 by mosymeow_1

1 answer

For the equilibrium $2SO_2 + O_2 \rightleftharpoons 2SO_3$ we start with 2 moles of $SO_2$ and 1 mole of $O_2$ at 3 atm. When equilibrium is attained, pressure changes to 2.5 atm. Hence, $K_p$ is:

asked Nov 15, 2013 by mosymeow_1

1 answer

For a very small extent of dissociation of $PCl_5(g) \rightleftharpoons PCl_3(g) + Cl_2(g)$ is a gaseous phase reaction then degree of dissociation, x:

asked Nov 15, 2013 by mosymeow_1

1 answer

$PCl_5(g) \rightleftharpoons PCl_3(g) + Cl_2 (g)$ In the dissociation of $PCl_5, x $ varies with $\frac{D}{d}$ according to:

asked Nov 15, 2013 by mosymeow_1

1 answer

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