Write the IUPAC name of following compound. H2C-C≡C-CH=CH-C≡C-CH3

1.  4 - Octen - 2 , 6 – diyne

2.  4 - Hepten - 2 , 6 – yne

3.  4 - Heptyn - 2 , 6 – ene

4.  2, 6 - Octen - 4- yne

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4
Correct Answer :

4 - Octen - 2 , 6 – diyne


Explanation :
No Explanation available for this question

Identify the bond which is stronger

1.  C = C

2.  C – H

3.  C≡C

4.  C – C

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4
Correct Answer :

C≡C


Explanation :
No Explanation available for this question

A metal has face centred cubic arrangement. If length of the edge of the cell is x pm and M is its atomic mass, then density will be equal to (N0 is Avogadro number)

1.  M/(X3 x N0) gcm-3

2.  (M x N0)/ x3 gcm-3

3.  4M/(X3 x N0) gcm-3

4.  M/(4X3 x N0) gcm-3

View Answer  
4
Correct Answer :

4M/(X3 x N0) gcm-3


Explanation :
No Explanation available for this question

In which of the following crystals alternate tetrahedral voids are occupied

1.  NaCl

2.  ZnS

3.  CaF2

4.  Na2O

View Answer  
4
Correct Answer :

ZnS


Explanation :
No Explanation available for this question

Close packing is maximum in the crystal which is

1.  Simple cubic

2.  bcc

3.  fcc

4.  None of these

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4
Correct Answer :

fcc


Explanation :
No Explanation available for this question

TlCl has NaCl structure, the coordination number of Tl+ inTlCl  is

1.  6

2.  4

3.  8

4.  3

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4
Correct Answer :

6


Explanation :
No Explanation available for this question

In which of the following structures, the cation has maximum coordination number

1.  Na2O

2.  Zinc blende

3.  CaF2

4.  NaCl

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4
Correct Answer :

CaF2


Explanation :
No Explanation available for this question

If the radius of an octahedral void is r and the radius of atom in close packing is R, then the relation between r and R is

1.  R = 0.414 r

2.  r = 0.732 R

3.  r = 0.414 R

4.  r = 0.532 R

View Answer  
4
Correct Answer :

r = 0.414 R


Explanation :
No Explanation available for this question

substance AxBy crystallizes in a face centred cubic (FCC) lattice in which atoms 'A' occupy each corner of the cube and atoms 'B' occupy the centres of each face of the cube. Identify the correct composition of the substance AxBy:

1.  AB3

2.  A4B3

3.  A3B

4.  Composition cannot be specified

View Answer  
4
Correct Answer :

A4B3


Explanation :
No Explanation available for this question

Which of the following is malachite ore

1.  Cu2S

2.  Cu2O

3.  CuCO3

4.  CuCO3. Cu(OH)2

View Answer  
4
Correct Answer :

CuCO3. Cu(OH)2


Explanation :
No Explanation available for this question
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