11th Class Physics MCQS
How many word beginning with C and ending with Y can be formed from the letters of the word COURTESY?
8!
7!
8!/2!
6!
Mixture of NH4OH and NH4Cl is one of the best examples of:
Acidic buffers
Basic buffers
Natural buffers
Acid base buffers
4! 0! 1! =
12
24
0
8
When 6d orbital is complete, entering electron goes into:
7p
7f
7s
7d
The principal value of sin-1?(3/2) is
?/2
-?/3
?/3
2?/3
In NH3molecule, The central atom N has:
Three bond pairs and one loan pair
Four bond pairs
Two lone pairs and two bond pairs
One bond pair and three lone pairs
A basic buffer solution can be prepared by mixing:
Strong base and its salt with weak acid
Weak base and its salt with strong acid
Weak acid and its salt with strong base
Strong acid and its salt with weak base
Which of the following is biogenetic product?
Qulinine
Asprin
Disprin
Insulin
When did Zial-ul-Haqimpose third martial law in Pakistan?
On July, 5 1979
On April, 4 1979
On July, 5 1977
On April, 4 1977
Which of the following orbits will be filled first:
4s
3d
4f
5d
<—————>
Continue Reading Go to Next Page
Google Ads