Solved Complete paper with their correct answers.
1. The oxidation no. of carbon in Formaldehyde?
Ans. ZERO
2. What will be the molarity of a solution having 10Kg solutes dissolved in 100 liters?
Ans. 0.1M
3. Which of the following can not derivatize to osazone?
Ans. Sucrose
4. Elements of the periodic table of group 1 are called alkali metals because?
Ans. their hydroxides are soluble in water
5. Which one is Co-polymer?
Ans. Nylon6, Nylon 6,6, Pvc, polystyrene
6. What is the formula for washing soda?
Ans. Na2CO3.10h2O
7. Normal ph of blood?
Ans. 7.4
8. Which amino acid does not form an alpha helix?
Ans. proline
9. Hydrocarbons are the compounds of?
Ans. Carbon and hydrogen
10. If ethyl bromide reacts with benzene in the presence of AlCl3, after several hours product
will be?
Ans. 1,3,5-triethylbenzene.
11. Which one is a strong acid?
Ans. HI
12. Osmotic pressure of plasma is?
Ans. 26 to 28 mm Hg.
13. Reaction of Ar-X with R-NH-R’
14. The cis-trans isomers of but 2 ene are
Ans. Structural isomers, Diastereomers, enantiomers
15. The product supplied to the cathode of the fuel cell
Ans. O2
16. What is added in complexometric titration to stabilize the product?
Ans. buffer
17. Fe3O4 is
Ans. Ferrous oxide
18. Electricity produced from polar crystal
Ans. pyroelectricity
19. Law of solvent extraction?
Ans. Nernst distribution law
20. Ph range of methyl orange?
Ans. 3-5
21. Solvent extraction using a small quantity is more?
Ans. Efficient
22. Endpoint in the reaction of Mn+7 to Mn+2?
Ans. Colour disappears from pink to colorless
23. Heisenberg uncertainty principle?
Ans. Position n momentum
24. What Source of pollution in the tanning of leather?
Ans. Cr 6
25. Strong hydrogen bonding with itself by?
Ans. HF
26. Saponification of fat is carried out by?
Ans. NaOH
27. Number of peptide bonds in decapeptide?
Ans. 9
28. Amphoteric oxide?
Ans. Pb(OH)2
29. Zinc is responsible for the release and storage of……
30. Buffer use in alkalimetric titration?
Ans. NaOH
31. Which chromatography has a stationary phase less polar than the mobile phase?
Ans. Reverse phase
32. Liquid part of paint is commercially referred to as?
Ans. Vehicle or drying oils
33. Greenhouse gas is……..
Ans. Radiative heat loss, radiative heat gain, convective heat gain, convective heat loss
34. Which carbohydrate is present in milk only?
Ans. Lactose
35. Glucose absorption decreases due to?
Ans. VIT D, E,
36. The surface on which substance adsorb is?
Ans. Adsorbent
37. Study of branches related to solid state, thermodynamics, metallurgy, and ceramics, with
synthesis and characterization of novel material is called?
Ans. solid-state chemistry
38. Exploit the property of crystal..
Ans. M.P, b.p,
39. UNO was founded in
Ans. 24 OCT 1945
40. Long walk of freedom is written by
Ans. Nelson Mandala
41. PTI started ……program in a pandemic?
Ans. On May 2, 2020
42. Abnormality in blood connectivity includes?
43. ONE gallon is equal to?
Ans. 3.785411784 liter
45. Software used for presentation and communication?
Ans. POWERPOINT
46. Software used for numerical problems?
Ans. EXCEL
47. Hayat saadi ky musanif?
Ans. Altaf Hussain Hali
48. Calculate ph if OH conc is 10-7
Ans. 7
49. According to Bronsted-Lowry theory base is?
Ans. Electron accepted
50. Entropy measures the amount of disorder in energy as well as the amount of disorder in
atoms.
51. What is the main law of photochemistry?
Ans. STARK Einstein law
52. In UV/vis spectrophotometer the source of radiation is?
Ans. tungsten filament
53. Max magnetic moment in a low spin-orbital complex of
Ans. Fe+3, Co+2, Co+3, Cr+2
54. Goiter is caused by a deficiency of
Ans. iodine
55. To extract Al, CN is used as a masking agent. CN, tartrate and….. can be used as
a masking agent used is
Ans. EDTA, HCN, TARTARIC ACID
56. Current carried by a charge is called
Ans. Transport nmbr
57. Movement of molecules from higher concentration. To lower concentration is
Ans. diffusion
58. Cyclobutadiene is
Ans. Antiaromativ
59. Which is incorrect about entropy
Ans. It is a path function
60. Entropy is
Ans. randomness
61. No conjugation in
Ans. cyclohexane
62. Phenylacetylene with Na/NH3
Ans. Trans 1,2 diphenylethene
63. Which is a purine
Ans. A,U,T,C
64. Cholesterol is transferred to the hepatic liver by
Ans. LDL, HDL, cholymi
65. COO- accepts proton in acidic conditions, NH+3 donates H in basic condition………….
Ans. Protein buffer
66. Ozone is depleted by?
Ans. CHlorofloroC
67. 13.54 value of R isomer, the racemic mixture formed which is 5.43, find the percentage of
S…………
68. Optical isomers are identified by
Ans. POLARIZED LIGHT
69. Crystallization exploits
70. Which is an unsaturated fatty acid?
Ans. OLEIC ACID
71. Which one is a hexadentate ligand
Ans. EDTA
72. Variable oxidation state, color……
Ans. TRANSITION ELEMENTS
73. Value of K was given answer first order
74. Number of lone pairs on oxygen in methanol
Ans. 2
75. Sn2 gives a reaction rapidly with
Ans. Ch3CH2I
76. 35% N is present in
Ans. NH4NO3
77. CONC. CAUSTIC SODA IS PREPARED IN WHICH CELL?
Ans. Diaphragm cell
78. CEMENT STRENGTH-RELATED MCQ
79. CHROMATOGRAPHY BASED ON SIZE AND GEOMETRY
Ans. Size exclusion chromatography (SEC)
80. PARANORMAL synonym
Ans. Supernatural
81. Gul khilana
Ans. Ajeeb kaam
82. Chemical equilibrium is
Ans. Dynamic equilibrium
83. 0.057-0.041
Ans. 0.061
84. The sum of 5 consecutive even numbers is 740. The highest even no. is
Ans. 152
85. Which one is an adverb
Ans. quickly
86. Full name of Taiwan
Ans. the Republic of China