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Recent questions tagged p-block-elements

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

asked Nov 29, 2013 by sreemathi.v

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

asked Nov 29, 2013 by sreemathi.v

1 answer

Which of the following is Lucus reagent?

asked Nov 29, 2013 by sreemathi.v

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

asked Nov 29, 2013 by sreemathi.v

1 answer

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

asked Nov 29, 2013 by sreemathi.v

1 answer

Which of the following is anhydride of $HNO_3$?

asked Nov 29, 2013 by sreemathi.v

1 answer

Which of the following in oxide mineral

asked Nov 29, 2013 by sreemathi.v

1 answer

Mortar is mixture of

asked Nov 29, 2013 by sreemathi.v

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

asked Nov 29, 2013 by sreemathi.v

1 answer

Carbogen is _____________

asked Nov 29, 2013 by sreemathi.v

1 answer

The oxidation number of sulphur in $S_8$

asked Nov 29, 2013 by sreemathi.v

1 answer

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

asked Nov 29, 2013 by sreemathi.v

1 answer

$Mg_3N_2+6D_2O\rightarrow x$

asked Nov 29, 2013 by sreemathi.v

1 answer

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

asked Nov 29, 2013 by sreemathi.v

1 answer

Water gas has

asked Nov 29, 2013 by sreemathi.v

1 answer

The empirical formulae for zeolites

asked Nov 29, 2013 by sreemathi.v

1 answer

Orthosilicates have

asked Nov 29, 2013 by sreemathi.v

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

asked Nov 29, 2013 by sreemathi.v

1 answer

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

asked Nov 28, 2013 by sreemathi.v

1 answer

Quartz is form of

asked Nov 28, 2013 by sreemathi.v

1 answer

The formulae of ferric alum

asked Nov 28, 2013 by sreemathi.v

1 answer

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

asked 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

asked 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

asked Nov 28, 2013 by sreemathi.v

1 answer

Borazole is also known as

asked Nov 28, 2013 by sreemathi.v

1 answer

There are how many Boron atoms in metaborate ion?

asked Nov 28, 2013 by sreemathi.v

1 answer

The colour of cobalt metaborate is

asked Nov 28, 2013 by sreemathi.v

1 answer

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

asked Nov 28, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Nov 28, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Nov 28, 2013 by sreemathi.v

1 answer

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

asked Nov 28, 2013 by sreemathi.v

1 answer

$HBr$ is weaker acid than HI due to

asked Nov 28, 2013 by sreemathi.v

1 answer

The reactivity $Na_2O$ going to $K_2O$

asked Nov 28, 2013 by sreemathi.v

1 answer

Silicon belongs to which category?

asked Nov 28, 2013 by sreemathi.v

1 answer

Each carbon in diamond is __________ hybridization

asked Nov 28, 2013 by sreemathi.v

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Oxygen belongs to which category?

asked Nov 28, 2013 by sreemathi.v

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The stability of which is correct ?

asked Nov 28, 2013 by sreemathi.v

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Flurine forms how many salts with xenon?

asked Nov 28, 2013 by sreemathi.v

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Graphite's lubricant nature in moon

asked Nov 28, 2013 by sreemathi.v

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With excess of $Cl_2$ ammonia forms

asked Nov 28, 2013 by sreemathi.v

1 answer

$H_2B_4O+5H_2O\rightarrow x$. $x$ is

asked Nov 28, 2013 by sreemathi.v

1 answer

Hydrolysis of chloroform with aqueous KOH gives

asked Nov 28, 2013 by sreemathi.v

1 answer

Which of the following doesn't participate in the solvay's process for manufacture of $Na_2CO_3$

asked Nov 28, 2013 by sreemathi.v

1 answer

Silica is soluble in

asked Nov 28, 2013 by sreemathi.v

1 answer

The element which can displace 3 other halogens from their compounds

asked Nov 28, 2013 by sreemathi.v

1 answer

$Be^{2+}$ is isoelectronic with :

asked Nov 27, 2013 by sreemathi.v

1 answer

Which of the following can be used as anaesthetic

asked Nov 27, 2013 by sreemathi.v

1 answer

Quartz is a crystalline variety of

asked Nov 27, 2013 by sreemathi.v

1 answer

Which one of the following element has highest first ionization potential?

asked Nov 27, 2013 by sreemathi.v

1 answer

Which one of the following compounds in aqueous solution gives a white precipitate acid?

asked Nov 27, 2013 by sreemathi.v

1 answer

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