- 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.
Select a pair of compounds which are isomorphic in nature.
- 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.
Ali is not drinking mango juice and Shahid is not drinking orange juice. Ali and Saad drink different juices. Feroz alone drinks apple juice. What is Saad’s juice, if all four of them are drinking different juices?
- Orange Juice
- Mango Juice
- Both Mango and Orange Juice
- Can’t say
- d
-
Ali, Shahid, Saad and Feroz
Apple Juice, Mango Juice, Orange Juice.
Evaporation of water is possible:
- 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.
What number comes next? 2,4,7,11,16,____, ____
- 21,28
- 22,28
- 21,29
- 22,29
- d
-
2+2=4
4+3=7
7+4=11
11+5=16
16+6=22
22+7=28
X and Y are two brothers, B is A’s brother but A is the mother of X. What is B to Y?
- Father
- Brother
- Son
- Uncle
- d
-
X & Y are two brothers.
A is mother of X (it means A is also mother of Y).
B is brother of A (it means B is Uncle of both X and Y)
Write the middle letter: B C D E F G H
- C
- D
- E
- F
- c
-
There are seven letters.
The middle position is the 4th letter which is E.
If you are the eleventh in a queue, starting from either side and how many persons are there in the queue?
- Twenty One
- Twenty
- Eleven
- Twenty Two
- a
-
The person is counted twice.
(11th from left & 11th from right)
11 + 11 – 1
21
Divide the largest of following numbers by the difference of two small numbers, then the answer will be: 16 20 12
- 2
- 5
- 4
- 10
- b
-
Largest number is 20
Smallest numbers are 16 and 12
Difference of Two smaller number is 4
Largest No / Difference= 20/4=5
If we want to add background image to all slides, what will be the correct option?
- Add background image to all slides individual
- There is no such option in MS Power Point
- Add background image in slide master
- Use auto format option
- c