Organic Chemistry | Inorganic Chemistry | Questions With Answers

Solved Objective Type Organic Chemistry & Inorganic Chemistry MCQs with Answers for Punjab Public Service Commission jobs tests and Federal Public Service Commission jobs tests. Chemical Engineering jobs interviews Viva type questions with solutions.

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Solved Organic & Inorganic Questions With Answers

Q.1: Which of the following fertilizers is not useful for paddy rice ?

1. urea
2. DAP
3. Ammonium sulphate
4. Ammonium nitrate

D

Q.2: Nucleic acids direct the synthesis of---------- ?

1. Glucose
2. Triglycerides
3. Proteins
4. All

C

Q.3: When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be-------- ?

1. tetrahedral
2. square planar
3. trigonal bipyramidal
4. octahedral

D

Q.4: The nutrients which are required in very small amount for the normal growth of plants are called--------- ?

1. nitrogenous fertilizers
2. micronutrients
3. phosphorus fertilizer
4. all of the above

B

Q.5: Newspaper can be recycled again and again how many times ?

1. 2
2. 3
3. 4
4. 5

D

Q.6: The percentage of suspended solid waste in raw water is removed by coagulation is--------- ?

1. 60
2. 70
3. 80
4. 90

C

Q.7: DAP (Diammonium hydrogen phosphate) contains -------------- plant nutrients ?

1. 60%
2. 65%
3. 70%
4. 75%

D

Q.8: Which of the following is not a secondary pollutant------------ ?

1. ozone
2. carbonic acid
3. sulphuric acid
4. carbon dioxide

D

Q.9: Polyester resins are the product of the reaction of--------- ?

1. Dihydric alcohol and dicarboxylic aromatic acids
2. Polyamines with aliphatic dicarboxylic acids
3. Styrene in the presence of catalyst
4. Epichlorohydrin with diphenylol propane

A

Q.10: Which one of the following set of raw material is most suitable for manufacture of urea ?

1. CH4 N2 and CO2
2. H2 N2 and CO
3. H2 CO2 and H2O
4. H2O N2 and H2

A

Q.11: Regular coiling or zigzagging of polypeptide through hydrogen bonding is its------- ?

1. Quantum structure
2. Secondary structure
3. Tertiary structure
4. Primary structure

B

Q.12: Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

1. Lime (CaO)
2. Silica (SiO2)
3. Alumina (Al2O3)
4. Magnesia (MgO)

A

Q.13: Lipids are soluble in---------- ?

1. Organic solvents
2. Organic and inorganic solvents
3. Inorganic solvents
4. Solubility has nothing to do with lipids

A

Q.14: Industrial materials and thermal power stations are coated with-------- ?

1. Polyester resins
2. Epoxy paints
3. Polyamide resins
4. Polyvinyl chloride

B

Q.15: The yellow colour in photochemical smog is due to presence of------------ ?

1. dinitrogen oxide
2. nitrogen dioxide
3. chlorine gas
4. chlorine dioxide

B

Q.16: Nucleic acids were first demonstrated in----------- ?

1. Pus cells
2. Sperm heads
3. 1872
4. all of the above

A

Q.17: Which is sold as fertilizer -------- ?

1. CaSiO3
2. Na2SiO3
3. Ca3(PO4)2
4. MnSiO3

C

Q.18: Chlorination of water may be harmful if the water contains------- ?

1. Ammonia
2. Dissolved oxygen
3. Carbon dixide
4. All

A

Q.19: The main pollutant of leather tanneries in the waste water is-------- ?

1. chromium III
2. chromium IV
3. chromium V
4. chromium VI

B

Q.20: Requirement of macronutrient per acre of the land is--------- ?

1. 5 to 200 kg
2. 20-200 kg
3. 200-400 kg
4. 30-400 kg

A