Energy required to remove electron from an atom-------?
Energy required to remove electron from an atom-------?
Electron affinity | |
Ionization potential | |
Activation energy | |
Electronegativity |
پاک اسٹڈی لائبریری اپنی خدمات کو بہتر کرنے کے لئے نئے سوفٹ وئیر انسٹال کررہی ہے ۔ اس لئے آئندہ کچھ دن آپ کو کچھ صفحات تک رسائی میں مشکلات کا سامنا ہوسکتا ہے ۔ جس کے لئے ہم معذرت خواہ ہیں۔
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Energy required to remove electron from an atom-------?
Electron affinity | |
Ionization potential | |
Activation energy | |
Electronegativity |
Energy required to form transition state is called ---------?
P.E | |
V | |
K.E | |
Ea |
Energy released or absorbed when electrons are added in atom is---------?
Ionization potential | |
Electron affinity | |
Activation energy | |
Electronegativity |
Energy of reactant higher than energy of product favours A. Endothermic--------?
Moderate reaction | |
No reaction | |
None | |
Exothermic |
Energy of activation for backward reaction is less than forward reaction for ------ reactio?
Exothermic | |
Endothermic | |
Fast | |
Moderate |
End name of enzyme is----------?
one | |
al | |
ase | |
yl |
Empirical formula of chloroform is----------?
CHCL3 | |
CC14 | |
CH2 C12 | |
CH3C1 |
Elimination bimolecular reactions involve--------------?
zero order kinetics | |
third order kinetics | |
second order kinetics | |
first order kinetics |
Elements with similar chemical properties appear in the---------?
Same family | |
Right upper corner | |
p block elements | |
Same period |
Elements which emit natural radioactivity are known as ----- ?
Radio elements | |
Nuclear elements | |
Active elements | |
Radioactive elements |
Elements of group IA IIA are ---------?
Electropositive | |
Neutral | |
Electronegative | |
IA is electropositive while IIA is electronegative |
Elements in the same vertical group of the periodic table have same--------?
Number of valence electrons | |
Atomic number | |
Atomic volume | |
Atomic mass |
Elements having high I.P values are----------?
Metals | |
Liquids | |
Solids | |
Non metals |
Element that have same number of neutrons are called-----?
isotope | |
isotone | |
isobar | |
None of these |
Electronic configuration of K is---------?
[Ar]4s2 | |
[He]2s1 | |
[Ar]4s1 | |
[Kr]5s1 |
Electronic Configuration of Calcium (Ca) atom may be written as----?
Ne, 4p2 | |
Ne, 4s2 | |
Ar, 4s2 | |
Kr,4p2 |
Electron was discovered by?
James Maxwell | |
Michael Faraday | |
Yuri Gagarin | |
J.J Thomson |
Electrolysis of dilute solution of NaCl results at the anode--------?
chlorine | |
sodium | |
hydrogen | |
oxygen |
Electrode potential of Zn is---------?
reduction | |
oxidation | |
oxidation-reduction | |
depends on the nature of the coupled electrode |
Electricity in voltaic cell is produced due to---------?
both B & C | |
reduction | |
neutralization | |
oxidation |
Electric bulb filament is made of-----?
C. Lead | |
D. Tungsten | |
Copper | |
B. Aluminum |
Effective volume is usually taken for ------ ?
5 moles of gas | |
3moles of gas | |
2 moles of gas | |
1 mole of gas |
Each catalyst has---------?
all of above | |
Specificity | |
Its own Ea | |
Special structure |
E0red of an element cab be calculated by comparing it with -----------?
New electrode of same element | |
1M solution of ions of respective element | |
2M solution of HCI | |
SHE |
During which process empty spaces between particles become minimum ?
fusion | |
ionization | |
evaporation | |
condensation |