- Potential Energy
- Electrical Energy
- Internal Energy
- Kinetic Energy
- c
-
Potential energy is due to position.
Electric energy is due to electric current.
Total energy of system consist of K.E and P.E which is called Internal Energy.
Kinetic energy is due to motion.
- Mg
- Fe
- Cu
- Zn
- d
-
Zinc protects iron / steel from rusting by forming a protective coating.
- dm3M-1
- dm3M-1
- dm3M-1S-1
- M-1S-1
- d
-
The unit of rate constant k depends on the order of the reaction.
- Secondary cell
- Diffuse cell
- Tertiary cell
- Primary cell
- d
-
Primary cell in not rechargeable. It is also called Galvanic cell.
Secondary cell is rechargeable. It is also known as Accumulator.
- Steam distillation
- Fraction distillation
- Destructive distillation
- Vacuum distillation
- d
-
مثال کے طور پر جب ہم پانی کو اُبالتے ہیں تو پانی 100 سینٹی گریڈ پر اُبلتا ہے۔
پانی کے اُبلنے کے دوران پانی پر ہوا کا دباؤ / پریشر ہوتا ہے۔اگر ہم پانی کے اوپر سے ہوا کے دباؤ کو ویکیوم پمپ کی مدد سے کم کر دیں تو یہی پانی 100 سینٹی گریڈ کی بجائے کم درجہ حرارت پر بھی آسانی سے اُبل سکے گا
- Na2CO3
- NaCl
- NH4Cl
- KCl
- a
-
In Na₂CO₃, NaOH is strong base and H₂CO₃ is weak acid.
In NaCl, Na is strong acid and Cl is strong base.
In NH₄Cl, HCl is strong acid and NH₄OH is weak base.
In KCl, K is strong acid and Cl is strong base.
- NaCl and ZnO
- NaCl and MgO
- KNO3 and MgO
- ZnO and CaCO3
- b
-
Isomorphous compounds are those that have the same crystal structure.
NaCl is chemical formula of Sodium Chloride.
MgO is chemical formula of Magnesium Oxide.
- Orange Juice
- Mango Juice
- Both Mango and Orange Juice
- Can’t say
- d
-
Ali, Shahid, Saad and Feroz
Apple Juice, Mango Juice, Orange Juice.
- Above 100C
- At 0C
- At 100C
- At all temperature
- d
-
Evaporation is s surface phenomenon and can occur at any temperature as long as water is in liquid form.