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Recent questions tagged ch-7
Questions
Which of the most easily lique fiable rate gas ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
Aqueous solution of $Na_2 S_2O_3$ on reaction with $cl_2$ gives
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
The reaction between $NH^{-}_2$ and $N_2O$ gives
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
Which of the following oxides cannot work as a reducing agent ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
Which one of the following pairs consists of only para magnetic species ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
The model abundant noble gas in the atmosphere is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
The shape of $X_eF_4$ is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
The first noble gas compound prepared by Bartlett was :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
$IF_5$ has the following hybridization :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
Solubility of iodine in water may be increased by adding
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
Among the halogen acids the one which is the weakest is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 21, 2017
by
meena.p
1
answer
The strongest reducing agent is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
The shapes of $IF_7$ is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
$SO_2+H_2S \to Product $ . The final product is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which of the following act as a pickling agent ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which of the following oxides is amphoteric in character ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which of the following has the least bond angle ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which of the following reaction is not feasible ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Sulphur molecule is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
The maximum covalency of Sulphur is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which of the following has the highest bond energy ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
The hybridization of $sin SF_4$ is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Hybridization of sulphur is $SO_3$ is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
Which one of the following is the strongest base ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 20, 2017
by
meena.p
1
answer
The range of oxidation states shows by phosphorous is form
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
0
answers
$P_2O_5$ is used extensively as a :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
Ammonia can be dried by :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
2
answers
Which of the following is not hydrolyzed?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
Which of the following oxides of nitrogen is thermally stable ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
The compound which has a molecular nature in gas phase but ionic ionic in solid state is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
Which of the following is called laughing gas?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
Which of the following oxides of nitrogen is paramagnetic ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 15, 2017
by
meena.p
1
answer
Which of the following is tri basic ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
2
answers
Electronic configuration $Is^2 ,2S^2,2P^1x2P^1y2P^1z$ respectively which of th following element ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following is iso electronic pair ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following peroxoacids of sulphur ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following is not tetrahedral in shape ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
The oxidation state of central atom in the anion of compound $NaH_2PO_2$ will be
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Maximum covalency of nitrogen is :
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following element does not show allotropy ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
On heating lead nitrate forms oxides of nitrogen and lead . The Oxides formed are
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following acids forms three series of salts ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following pairs of ions are isoelectronic and isostructural ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following elements can be involved in $p \pi - d \pi $ bonding ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
The product obtained in the reaction of diborance with excess of ammonia is
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
Which of the following carbides is an allylides ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
1
answer
A large number of poly phosphoric acids and salt arise by
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 14, 2017
by
meena.p
0
answers
What products do you expecting the following reaction ? $AlN+NaOH+H_2O \to A+B$
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 13, 2017
by
meena.p
1
answer
Oxalic acid and formic acid both are the producer ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 13, 2017
by
meena.p
1
answer
Which one is correct about borazole ?
cbse
class12
chemistry
ch-7
p-block-elements
asked
Feb 13, 2017
by
meena.p
1
answer
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