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HSSC Laboratory Asst. / Dt.-01-01-2023 Morning Shift (Cat. No. 11,12,13,14,15)
š December 16, 2024
Total Questions: 100
21.
Insert the missing number -
(a) 1
(b) 39
(c) 26
(d) 45
Correct Answer:
(b) 39
22.
Which two signs need to be interchanged to make the following equation correct?
9 Ć 98 Ć· 14 + 3 - 19 = 11
(a) '-' and '+'
(b) '+' and 'x'
(c) '-' and 'x'
(d) '+' and '-'
Correct Answer:
(b) '+' and 'x'
23.
In a certain code 'PURE' is written as 'QVQD' and 'COPE' is written as 'DPOD'. How is 'WHEN' written in the code?
(a) XIFO
(b) VGDM
(c) XIDM
(d) VGFO
Correct Answer:
(c) XIDM
24.
Two thirds of a number is 16 more than 40 percent of that number. What is the number?
(a) 45
(b) 60
(c) 120
(d) 180
Correct Answer:
(b) 60
25.
If D = 4, BAD = 7, then what is the value of ANT?
(a) 8
(b) 17
(c) 35
(d) 37
Correct Answer:
(c) 35
26.
A man starts from a point and walks 2 km towards north. He turns right and walks 3 km. Then he turns left and travels 2 km. The direction he is now facing is-
(a) west
(b) north
(c) east
(d) south
Correct Answer:
(b) north
27.
For a d-electron, the orbital angular momentum is-
(a) ā6 h/2Ļ
(b) ā2h/ā2Ļ
(c) h/2Ļ
(d) 2h/Ļ
Correct Answer:
(a) ā6 h/2Ļ
28.
The total number of electrons in a subshell designated by azimuthal quantum number l is given as-
(a) 2l + 1
(b) lĀ²
(c) 4l + 2
(d) 2l + 2
Correct Answer:
(b) lĀ²
29.
If the central atom in a molecule has two lone pairs and three bond pairs, the shape of the molecule could be-
(a) T-shaped
(b) trigonal planar
(c) trigonal bipyramidal
(d) distorted tetrahedral
Correct Answer:
(a) T-shaped
30.
A sample of gas expands from Vā to Vā. The amount of work done by the gas is maximum when the expansion is-
(a) adiabatic
(b) isothermal
(c) isobaric
(d) same in all the cases
Correct Answer:
(c) isobaric
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