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Recent questions and answers in p-Block Elements

Questions >> JEEMAIN and NEET >> Chemistry >> p-Block Elements

The common characteristic in all oxides and oxyacids of nitrogen is:

answered Jan 27, 2019 by ishujain318

1 answer

Using the following information determine the boiling point of a mixture contains $1560$ gm benzene and $1125\; gm$ chlorobenzene, when the external pressure is $1000\; torr$ Assume the solution is ideal.Given : Molar mass of benzene =$ 78$ ; Molar mass of chlorobenzene = $112.5$

answered Jan 18, 2016 by meena.p

1 answer

Which of the following statements are NOT correct?

answered Mar 16, 2014 by balaji.thirumalai

1 answer

Which of the following statements regarding Halogens is NOT correct?

answered Mar 16, 2014 by balaji.thirumalai

1 answer

Which of the following statements is NOT correct?

answered Mar 16, 2014 by balaji.thirumalai

1 answer

In Castner's process of attraction of sodium cathode is

answered Jan 17, 2014 by sreemathi.v

1 answer

Which of the following reacts with $BCl_3$ to form diborane

answered Jan 17, 2014 by sreemathi.v

1 answer

Aqueous solution of carnalite gives positive test for

answered Jan 17, 2014 by sreemathi.v

1 answer

Silica is eliminated during the process as:

answered Nov 29, 2013 by sreemathi.v

1 answer

$\Rightarrow A\overset{HBr}{\rightarrow}C_2H_5Br\overset{B}{\rightarrow}A$.B is

answered Nov 29, 2013 by sreemathi.v

1 answer

$\Rightarrow A\overset{HBr}{\rightarrow}C_2H_5Br\overset{B}{\rightarrow}A$.A is

answered Nov 29, 2013 by sreemathi.v

1 answer

Flurosis disease is caused due to the reaction of __________with excess of fluride in the body

answered Nov 29, 2013 by sreemathi.v

1 answer

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

answered Nov 29, 2013 by sreemathi.v

1 answer

The number of lone pairs of e's present in $Xe$ in $XeF_4$

answered Nov 29, 2013 by sreemathi.v

1 answer

Chloroethane reacts with $X$ to form diethyl Either.What is $X$?

answered Nov 29, 2013 by sreemathi.v

1 answer

Which of the following is Lucus reagent?

answered Nov 29, 2013 by sreemathi.v

1 answer

In which of the following $H_2O_2$ acts as reducing agent?

answered Nov 29, 2013 by sreemathi.v

1 answer

Which of the following is used in the preparation of generated water (soda)?

answered Nov 29, 2013 by sreemathi.v

1 answer

Which of the following is anhydride of $HNO_3$?

answered Nov 29, 2013 by sreemathi.v

1 answer

Which of the following in oxide mineral

answered Nov 29, 2013 by sreemathi.v

1 answer

Mortar is mixture of

answered Nov 29, 2013 by sreemathi.v

1 answer

A gas decolourises $Br_2$ in $CCl_4$ and forms a precipitate with Ammoniacal silver nitrate .The gas is

answered Nov 29, 2013 by sreemathi.v

1 answer

Carbogen is _____________

answered Nov 29, 2013 by sreemathi.v

1 answer

The oxidation number of sulphur in $S_8$

answered Nov 29, 2013 by sreemathi.v

1 answer

$2D_2O\overset{electrolysis}{\rightarrow}$

answered Nov 29, 2013 by sreemathi.v

1 answer

$Mg_3N_2+6D_2O\rightarrow x$

answered Nov 29, 2013 by sreemathi.v

1 answer

$CaO+D_2O\rightarrow Ca(OD)_2\downarrow$

answered Nov 29, 2013 by sreemathi.v

1 answer

Water gas has

answered Nov 29, 2013 by sreemathi.v

1 answer

The empirical formulae for zeolites

answered Nov 29, 2013 by sreemathi.v

1 answer

Orthosilicates have

answered Nov 29, 2013 by sreemathi.v

1 answer

$2R-Cl+Si\overset{Cu/300^{\large\circ}C}{\rightarrow}Organosilicon$

answered Nov 29, 2013 by sreemathi.v

1 answer

When $SiO_2$ is beated with C in an electric formula

answered Nov 28, 2013 by sreemathi.v

1 answer

Quartz is form of

answered Nov 28, 2013 by sreemathi.v

1 answer

The formulae of ferric alum

answered Nov 28, 2013 by sreemathi.v

1 answer

$B_2H_6+HCl\overset{catalyst}{\rightarrow}B_2H_5Cl+H_2\uparrow$.The catalyst is

answered Nov 28, 2013 by sreemathi.v

1 answer

When $B_2H_6$ reacts with $H_2O$ or alkalies and produces $x+y$ is liberated.The $y$ liberated is

answered Nov 28, 2013 by sreemathi.v

1 answer

When $B_2H_6$ reacts with $H_2O$ or alkalies and produces $x+y$ is liberated.The $x$ is

answered Nov 28, 2013 by sreemathi.v

1 answer

Borazole is also known as

answered Nov 28, 2013 by sreemathi.v

1 answer

The colour of cobalt metaborate is

answered Nov 28, 2013 by sreemathi.v

1 answer

$CoSO_4+B_2O_3\rightarrow$(Bead).From this equation the Bead is

answered Nov 28, 2013 by sreemathi.v

1 answer

Refer to the below equation :

answered Nov 28, 2013 by sreemathi.v

1 answer

Refer to the below equation :

answered Nov 28, 2013 by sreemathi.v

1 answer

$5H_2O+NaB_4O_7+2HCl\rightarrow 2NaCl+x$. In this equation the $x$ is

answered Nov 28, 2013 by sreemathi.v

1 answer

$HBr$ is weaker acid than HI due to

answered Nov 28, 2013 by sreemathi.v

1 answer

The reactivity $Na_2O$ going to $K_2O$

answered Nov 28, 2013 by sreemathi.v

1 answer

Silicon belongs to which category?

answered Nov 28, 2013 by sreemathi.v

1 answer

Each carbon in diamond is __________ hybridization

answered Nov 28, 2013 by sreemathi.v

1 answer

Oxygen belongs to which category?

answered Nov 28, 2013 by sreemathi.v

1 answer

The stability of which is correct ?

answered Nov 28, 2013 by sreemathi.v

1 answer

Flurine forms how many salts with xenon?

answered Nov 28, 2013 by sreemathi.v

1 answer

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