Which of the elements do not fall in stair case of the modern periodic table__________________?
A. Si
B. As
C. Te
D. None of the above
Submitted by :- Jamil Ahmed
Which of following metals can be displaced by all other metals from its solution ?
A. Ag
B. A
C. Au
D. Cu
Submitted by :- Jamil Ahmed
In which of the following type of reactions energy of reactant is greater than energy of product________________?
A. endothermic
B. exothermic
C. unpredictable
D. same
Submitted by :- Jamil Ahmed
At which electrode the reduction of the solution is occurring in Al-Ag cell_____________?
A. Al
B. Ag (SILVER)
C. Both
D. Neither
Submitted by :- Jamil Ahmed
The use of antifreeze in the automobile radiator is an important application of__________________?
A. constitutive property
B. additive property
C. colligative property
D. intrinsic property
Submitted by :- Jamil Ahmed
What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3 ?
A. 6
B. 4
C. 3
D. 2
Submitted by :- Jamil Ahmed
On heating aldehydes with Fehling’s solution we get a precipitate whose colour is_________________?
A. pink
B. black
C. yellow
D. brick red
Submitted by :- Jamil Ahmed
Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?
A. aluminium can be recycled
B. aluminium has very low density
C. aluminium is the most abundant metal in the earth crust
D. aluminium is resistant to corrosion by organic acids.
Submitted by :- Jamil Ahmed
In solids the temperature is the measure of__________________?
A. Average kinetic energy of molecules
B. Vibrational kinetic energy
C. Translational kinetic energy
D. None of the above
Submitted by :- Jamil Ahmed
All the transition elements show_________________?
A. Similar physical properties
B. Similar chemical properties
C. Both A and b
D. None
Submitted by :- Jamil Ahmed