Chemistry Tests of graduation Level 13 Welcome to Shaheen Leader Academy We expect 100% result. Click on Start Button. Your time is Ended. Thanks Chemistry (Graduation) Quiz 1 / 25 The branch of science concerned with the chemical and physio chemical processes and substances that occur within living organism is called:- Analytic chemistry Physical chemistry Organic chemistry Bio chemistry 2 / 25 Which value of COD indicates more polluted water:- Higher value Both of these None of these Low value 3 / 25 Which statement is not true about nitric oxide:- It produced by fuel combustion It absorb sunlight and start photochemical reaction It is a colorless gas It is a brown pungent gas 4 / 25 Which statement is not correct about harmful effect of ground water pollution:- It helps to prevent epidemics It causes typhoid, dysentery, and diarrhea It causes jaundice It causes lungs cancer 5 / 25 Peeling of ozone umbrella is due to:- Coal Burning PAN CO2 CFCs 6 / 25 ____ is an inflammable colourless gas with a sticky sweet odour and is extremely toxic:- B4 H10 B5 H9 B6 H10 B2H6 7 / 25 The residue which is formed on combustion of fuel in power plant is called:- Dust Smoke Activated carbon Soot 8 / 25 Chromium is found in nature in form of:- Silicates Borates Sulphides Oxides 9 / 25 Detergents can be made biodegradable and pollution free by taking:- Cyclic hydrocarbon chain Unbranched hydrocarbon chain Shorter hydrocarbon chain Hydrocarbon with more branching 10 / 25 _____ amino acid contains hydroxyl group:- Threonine Arginine Isoleucine Alanine 11 / 25 _____ biotechnology that deals with aquatic organisms:- Green White Blue Yellow 12 / 25 Which generate more energy than the same weight of carbohydrates:- Ganglioside Sphingolipids Cephalin triacylglycerol 13 / 25 The pH of 1 M HCl is:- 0.1 1 0 0.2 14 / 25 Which fatty acids are present in palm kernel oil:- palmitic acid all of the above linoleic acid steric acid 15 / 25 The bond order of C2 molecule is:- 3 2.5 2 1 16 / 25 Vitamin K plays role in:- Posttranslational modification of protein Synthesis of prothrombin proconvertin All of the above Synthesis of Osteocalcin 17 / 25 Porous size of agarose gel is help to separate:- Most proteins Large protein complexes Small ilogonucleotides Micro RNA 18 / 25 The type of chromatograph in which gas is used as mobile phase and liquid is used as stationary phase is called:- IC TLC HPLC GLC 19 / 25 A mixture of weak acid and its salt:- Acidic buffer Alkaline buffer Neutral buffer none of these 20 / 25 Temperature of atmosphere _____ with altitude:- None of these remain constant Increase Decrease 21 / 25 Combination of α- amino acid through which linkage results in formation of protein:- Lactum linkage Peptide linkage Glycosidic linkage Ester linkage 22 / 25 Ozone depletion in stratosphere will result in:- Global warming Acid rain Increased incidence of skin cancer Forest fire 23 / 25 Cytochrome p-450 carries which type of enzymes:- Dehydrogenase Catalase Monooxygenase Monoamine oxidase 24 / 25 The study of coiled long peptide chains of protein to give a 3-dimensional structure is the study of:- Quaternary structure primary structure Tertiary structure Secondary structure 25 / 25 Insulin deficiency ______ lipogenesis:- Depressed decrease Increase Not effect Your score is LinkedIn Facebook Twitter VKontakte Restart quiz Subscribe our Channel Here