How many zones through which the charge passes in a rotary kiln ?
How many zones through which the charge passes in a rotary kiln ?
5 | |
3 | |
2 | |
4 |
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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How many zones through which the charge passes in a rotary kiln ?
5 | |
3 | |
2 | |
4 |
How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum ?
Four | |
Six | |
Two | |
Three |
How many moles are in 22.2 grams of Calcium chloride, CaCl2?
0.2 moles | |
0.3 moles | |
0.5 moles | |
0.4 moles |
How many isotopes have odd atomic number ?
154 | |
280 | |
300 | |
86 |
How many isomeric aldoses are possible for the molecular formula C6H12O6?
2 | |
4 | |
D.16 | |
7 |
How many electrons are there in benzene to form delocalized electron cloud--------?
8 | |
4 | |
6 | |
3 |
Homogeneous mixture of two or more than two compounds is called---------?
ion | |
radical | |
solution | |
compound |
Higher value of electron affinity means---------?
The reason is unknown | |
Atom will gain electron easily | |
Atom may form di-positive ion | |
Atom will lose electron easily |
Heating phenol with Zn will yield---------?
Benzoic acid | |
Cyclohexane | |
Phenoxide | |
Benzene |
Halides in which halogen atoms act as a bridge between two atoms of the other element are called----------?
Polymeric hydrides | |
Polymeric halides | |
Covalent halides | |
Electronegative halides |
H2 gas in SHE is filled at pressure of----------?
800mm of Hg | |
760mm of Hg | |
750mm of Hg | |
780mm of Hg |
Gypsum is---?
CaSO4,2H2O | |
CaSO4 | |
CaSO4.3H2O | |
CaSO4.1/2H2O |
Gypsum is applied to the soil as a source of--------?
Ca and S | |
Ca and P | |
S and P | |
we could not apply |
Group VIB of transition elements contains----------?
Cr Mo W | |
Zn Cd Hg | |
Fe Ru Os | |
Mn Te Re |
Grignard reagent is reactive due to----------?
the presence of halogen atom | |
the polarity of C-Mg bond | |
the presence of magnesium atom | |
all |
Grignard reagent gives carboxylic acid with------?
HCN | |
COC2 | |
CH3CHO | |
CO2 |
Greater value of standard reduction potential smaller will be tendency-------?
to form positive ions | |
all are possible | |
gain electrons | |
to form negative ions |
Greater value of standard reduction potential greater will be tendency---------?
both B and C | |
to accept electrons | |
to get reduced | |
to get oxidized |
Greater the conc. Of reactant---------?
dx/dt will be moderate | |
Lesser will be dx/dt | |
Greater will be dx/dt | |
any of above |
Greater shielding effect corresponds to ionization energy value----------?
Remain same | |
Lesser | |
Greater | |
No effect |
Gooch Crucibles are made up of--------?
plastic | |
porcelain | |
fibre | |
steel |
Glycine is the name of an amino acid because----------?
Shining appearance | |
Sweet taste | |
Bitter taste | |
Green colour |
Give Electronic configuration of Sodium:
None of these | |
1s2,2s2,2p6,3s2 | |
1s2,2s2,2p6 | |
1s2,2s2,2p6,3s1 |
Geometry of the complex compounds usually depends upon ---------?
type of ligands | |
types of hybridization in the elements of ligands | |
hybridization of central metal | |
All of above |
Geometry of simple molecule having sp3 hybrid orbital is ----------?
Square planner | |
Tetrahedral | |
Triangular | |
Linear |