Chemistry

Question 1

The correct order of atomic radii

Answer 1

F less than Li less than Na less than K

Question 2

Atomic radius of fluorine is only greater than

Answer 2

Ne

Question 3

Which of the following is smallest size

Answer 3

Na plus

Question 4

Which of the following series is arranged in order of increasing value

Answer 4

The first ionization energy of Oxygen fluorine neon

Question 5

In the following the element with the highest ionization energy is

Answer 5

[Ne] 3s2 3p3

Question 6

Which if the following has greater negative first electron affinity

Answer 6

Carbon

Question 7

Which of the following group of element have positive 1 st electron affinity

Answer 7

2A

Question 8

Generally the melting point decrease from VA to VIII A along the period but with exception of

Answer 8

Sulphur

Question 9

Correct order of group 2A elements

Answer 9

Be greater Ca greater Mg

Question 10

In which group melting and boiling point decrease down the group

Answer 10

1A

Question 11

The element which has boiling point less than 0 C is

Answer 11

Nitrogen

Question 12

Which of the following is incorrect information

Answer 12

Electrical conductivity of metals increases with the increase of temp

Question 13

Which if the following group of element have extra ordinary high value of electrical conductivity

Answer 13

1B

Question 14

Which if the following alkali metals forms only normal oxide when it reacts with O2

Answer 14

Lithium

Question 15

The element of group 1 A rwct voilently with water and make solution

Answer 15

Alkaline

Question 16

Which if the following metals can form peroxide with oxygen

Answer 16

Ba

Question 17

Which one posses maximum number number of unpaired electrons

Answer 17

Mnplus2

Question 18

The element which gains electronic configuration of a noble gas at +3 oxidation state

Answer 18

Sc

Question 19

At which oxidation state Cu axhieves electeonic configuration of Zn+2

Answer 19

+1

Question 20

Which two pair show same ixidation state of iron

Answer 20

Fe2(SO) 4 , Fe2O3

Question 21

Which has same charge on central metal atom as the coordination sphere

Answer 21

[Cu (NH3) ]SO4

Question 22

Which transtion metals serves as catalyst for oxidation of alkanes

Answer 22

Cu

Question 23

Number of electron involved in d-d transition of [Ti(H2O) ]+3

Answer 23

+1

Question 24

Ti+3 shows minimum absorbtion at______P_________wavelength

Answer 24

Red, Blue

Question 25

The algebric sum of charge present on the central metal atom ion and the total charge on the ligand is called

Answer 25

Charge on coordination sphere

Question 26

Which one complex is more stable

Answer 26

[pt l(C2O4) ]-2

Question 27

The anomalous electronic configuration shown by chromium and copper among 3-d series element is due to

Answer 27

Stability associated with this configurarion

Question 28

Copper is typical transition metal. Its atomic number is 29 In which oxidation state does it partially filled orbital in d-subshell

Answer 28

Cu+2

Question 29

The geometry of complex depends upon type of _______ taking place in the valence shell of centeal metal atom

Answer 29

Hybridization

Question 30

Violet color of [Ti(H2O) ]+3 ion is due to

Answer 30

Central metal ion

Question 31

The octahedral geometry of complexes [Co(NH3) 6]+3 had hybridization

Answer 31

Sp3d2

Question 32

In complex potassium hexacyanoferrate(111) [K3Fe(CN6) ] the coordiantion number of Fe is

Answer 32

6

Question 33

The transition element which doesnot show variable valency is

Answer 33

Zn

Question 34

In 3rd series of transitionbelements paramagnetic behaviour is maximum for Mn+2 and

Answer 34

Cr+3

Question 35

The transition element which doesnot shiw variable valency is

Answer 35

Zn