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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 801. |
Vitamin which play role in coagulation property of blood isA. vit-AB. vit-KC. vit-ED. vit-D |
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Answer» Correct Answer - B |
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| 802. |
Purity of butter is detemined in terms of:A. saponification valueB. iodine valueC. aeety1 valueD. Reichert-Meissl value |
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Answer» Correct Answer - D It is defined a number of milliliter of `N//10 OH` solution required to neutralize the distillate acid of `5g` of hydrolysed fat. |
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| 803. |
Monosaccharides containing aldehyde group are called :(a) aldoses (b) ketoses (c) polysaccharides (d) disaccharides |
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Answer» Option : (a) aldoses |
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| 804. |
Oxidation product of glucose with bromine water is :(a) sorbitol (b) gluconic acid (c) glutamic acid (d) saccharic acid |
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Answer» Option : (b) gluconic acid |
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| 805. |
Which of the following vitamins is water soluble? (a) Vitamin E (b) Vitamin K (c) Vitamin A (d) Vitamin B |
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Answer» (b) Vitamin K |
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| 806. |
The vitamins absorbed from the intestine along with fats are:A. A,DB. A,BC. A,CD. D,B |
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Answer» Correct Answer - A Vitamins A and D are absorbed from intestine along with fats. |
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| 807. |
Two vitamins absorbed from intestine along wit fats areA. A and DB. A and CC. A and BD. D and C |
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Answer» Correct Answer - A |
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| 808. |
Which is the correct statement?A. Starch is a plymer of `alpha-`glucose.B. Amylose is a component of collulose.C. Proteins are composed of only one type of amino acids.D. In cyclic structure of furnaose, there are four carbon atoms and one oxygen atom. |
| Answer» Correct Answer - A | |
| 809. |
The general formula of carbohydrates is :(a) C(H2O)(b) Cx(H2O)y(c) Cx(H2O)(d) Cx(H2O)x |
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Answer» Option : (b) Cx(H2O)y |
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| 810. |
Amylopectin is a polymer of :A. `beta`-D-glucoseB. `alpha`-D-glucoseC. `beta`-D-fructoseD. `alpha`-D-fructose |
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Answer» Correct Answer - B Amylopectin is a component of starch and is composed of `alpha`-D-glucose units |
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| 811. |
The vitamins absorbed from the intestine along with fats are:A. `A, D`B. `A, B`C. `A, C`D. `D, B` |
| Answer» Correct Answer - A | |
| 812. |
Two functional group that are present in all amino acids are theA. hydroxy, amineB. hydroxy, amide ,C. carboxyl, aminoD. carboxyl, amide |
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Answer» Correct Answer - C |
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| 813. |
Glucose is an aldose. Which one of the following reactions is not expected with glucose? (a) It does not form oxime (b) It does not react with Grignard reagent (c) It does not form osazones (d) It does not reduce tollens reagent |
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Answer» (b) It does not react with Grignard reagent |
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| 814. |
Carbohydrates are represented by the general formulaA. `C_x H_(2x) O_(2x+2)`B. `C_x (H_2O)_x`C. `C_x (H_2O)_y`D. `C_x(H_2O)_(2x)` |
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Answer» Correct Answer - C General formula of carbohydrates is `C_x (H_2O)_y` |
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| 815. |
The functional group which is found in amino acid is:A. `-COOH`B. `-NH_(2)`C. `-CH_(3)`D. Both (a) and (b) |
| Answer» Correct Answer - D | |
| 816. |
Which of the following statement is correct? (a) Ovalbumin is a simple food reserve in egg-white (b) Blood proteins thrombin and fibrinogen are involved in blood clotting (c) Denaturation makes protein more active (d) Insulin maintains the sugar level of in the human body |
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Answer» (c) Denaturation makes protein more active |
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| 817. |
Amylopectin is a polymer of :A. `alpha`-D-glucoseB. `alpha`-D-fructoseC. lactoseD. amylose |
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Answer» Correct Answer - A Amylopectin is a polymer of `alpha`-D-glucose |
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| 818. |
Complete hydrolysis of cellulose gives:A. `L`-GlucoseB. `D`-FructoseC. `D`-RiboseD. `D`-Glucose |
| Answer» Correct Answer - D | |
| 819. |
Complete hydrolysis of cellulose gives ……… (a) L – Glucose (b) D – Fructose (c) D – Ribose (d) D – Glucose |
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Answer» (d) D – Glucose |
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| 820. |
Complete hydrolysis of cellulose gives:A. D-fructoseB. D-glucoseC. D-riboseD. L-glucose |
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Answer» Correct Answer - B |
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| 821. |
Complete hydrolysis of cellulose gives:A. `D`-glusoeB. `L`-glucoseC. `D`-fructoseD. `D`-ribose |
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Answer» Correct Answer - A Cellulose is a straight chain polysaccharide comprised of `D-glucose joined by `beta`-glycosides and on hydrolysis it gives only D-glucose. |
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| 822. |
The Ziegler-Natta catalysts areA. StereospecificB. Non-metallic complexesC. Gaseous catalystsD. Universal in all polymersation reactions |
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Answer» Correct Answer - A Ziegler-Natta catalyst is a mixture of `TiCl_(4)` and `(C_(2)H_(5))_(5) Al` used in the synthesis of steroregular polymers. |
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| 823. |
Complete hydrolysis of cellulose gives:A. D-fructoseB. D-riboseC. D-glucoseD. L-glucose |
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Answer» Correct Answer - C `underset("Cellulose")(C_(6)H_(10)O_(5))n+nH_(2)O overset(H^(+))(rarr) underset("D-glucose")(nC_(6)H_(12)O_(6))` Cellulose is a straight chain polysaccharide composed of D-glucose units which are joined by `beta-` glucosideic linkages. Hence cellulose on hydrolysis produces only D-glucoser units. |
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| 824. |
Melamine isA. GasB. Yellow liquidC. White crystalline solidD. Colloidal solution |
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Answer» Correct Answer - C Melamine is the phenol-urea resin which are white crystalline solid |
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| 825. |
Perlon isA. rubberB. nylon`-6`C. tereleneD. oxlon |
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Answer» Correct Answer - B Perlon is Nylon`-6` . It is prepared from a single monomer having a potential amino group of one end and a potential carbony group of other end. |
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| 826. |
Nylon threads are made up ofA. polyvinyl polymerB. Polyester polymerC. Polyamide polymerD. Polyethylene polymer |
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Answer» Correct Answer - C Nylon threads are polyamides. They are th condensation polymers of diamines and dibasic acids. `underset("adipic acid")(nHOOC(CH_(2))_(4)COOH)+underset(underset("diamine")("hexamethylene"))(nH_(2)N(CH_(2))_(6)NH_(2)) underset("high pressure")overset(280^(@)C) (rarr) [underset("nylon(polyamide)")(OC-(CH_(2))_(4)-CONH(CH_(2))_(6)NH]]_(n)`. |
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| 827. |
Which of the following is synthetic rubber?A. Buna-SB. NeopreneC. Both (a) and (b)D. None of these |
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Answer» Correct Answer - C Buna-S and Neoprene both are synthetic rubber. |
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| 828. |
Which of the following is not a polymer?A. SilkB. `DNA`C. `DDT`D. Starch |
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Answer» Correct Answer - C `DDT` is an organic compound used as insecticide not is a polymer |
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| 829. |
What is not true about Polymers?A. Polymers do not carry any chargeB. Polymers have high viscosityC. Polymers scatter lightD. Polymers have low molecular weight |
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Answer» Correct Answer - D Polymers have high molecular weight. |
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| 830. |
Which of the following is not polyamide ?A. nylon`-66`B. ProteinC. glyptalD. nylon`-6` |
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Answer» Correct Answer - C Glyptal is an alkyl resin of ethylene glycol `[HO-CH_(2)-CH_(2)OH)` |
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| 831. |
Glyptal isA. Viscose rayonB. NylonC. PolystyreneD. Alkyd resin |
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Answer» Correct Answer - D Glyptal is a polymer of phthalic acid and Glycol. |
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| 832. |
Characteristic property of teflon isA. 2000 poise viscosityB. High surface tensionC. Non-inflammable and resistant to heatD. Highly reactive |
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Answer» Correct Answer - C Teflon is non-inflammable and resistant to heat so it is used in coating, particularly in non-sticing frying pans. |
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| 833. |
Which of the following statements is falseA. Artifical silk is derived from celluloseB. Nylon-66 is an example of elastomerC. The repeat unit in internal rubber is isopreneD. Both starch and cellulose are polymers of glucose |
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Answer» Correct Answer - B Nylon-6,6 is an example of fibres. |
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| 834. |
Which of the following is not polyamide ?A. Nylon-66B. ProteinC. GlyptalD. Nylon-6 |
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Answer» Correct Answer - C Glyptal is an alkyd resin of ethylene glycol `(HO - CH_(2) - CH_(2) - OH)` |
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| 835. |
Which of the following is a copolymer formed by condensation polymerization?A. Buna-`S`rubberB. Buna-NC. NeopreneD. Terylene |
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Answer» Correct Answer - D Terylene is prepared by condensing ethylene glycol and terephthalic acid. |
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| 836. |
Which is not a ploymer?A. sucroseB. EnzymeC. StrachD. Teflon |
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Answer» Correct Answer - A Socrose is a disaccharides which upon acid or enzymatic hydrolysis gives only two molecules of monosaccharides `"Sucrose"overset(H^(+)" or invertaase")toD(+)-"glucose"+(D)(-)-"fructose"` |
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| 837. |
Which one of the following is an example of copolymer?A. TeflonB. Buna-`S`C. `PVC`D. Polypropylene |
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Answer» Correct Answer - B Buna-`S` is copolymer of buta-1,3-diene and strene. |
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| 838. |
Which of the following statements is not correct?A. Caprolactam is the monomer of nylon-6B. Terylene is a polyester polymerC. Pheno formaldehyde resin is known as bakeliteD. The monomer of natural rubber is butadiene |
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Answer» Correct Answer - D The monomer of natural rubber is isoprene (2-methylbuta 1,3 diene) |
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| 839. |
Which of the following is used in valcuization of rubber ?A. `SF_(6)`B. `CF_(4)`C. `Cl_(2)F_(2)`D. `C_(2) F_(2)` |
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Answer» Correct Answer - A `SF_(6)` is used in the vucalnisation cress-lining and thus, form tough polymer. |
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| 840. |
Which of the following statements is not correct ?A. Only `alpha`-amino acids are obtained on hydrolysis of proteinsB. The amino acids which are synthesised in the body are known as non-essential amino acids.C. There are 20 essential amino acids.D. L-amino acids are represented by writing the `-NH_(2)` group on the left side. |
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Answer» Correct Answer - C There are 10 essential and 10 non-essential amino acids. |
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| 841. |
The regulation by an organism of chemical composition of its blood and body fluids and other aspects of its internal environment so that physiological processes can proceed at optimum rates is calledA. metabolismB. enthalpyC. entropyD. homeostasis. |
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Answer» Correct Answer - D Hemeostasis is the regulation by an organism of the chemical composition of its body fluids and other aspects of its internal environment so that physiological processes can proceed at optimum rates. |
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| 842. |
Differences in amino acids are due to theirA. Carboxyl groupB. Amino groupC. Peptide bondD. R-Group |
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Answer» Correct Answer - D (D) Difference in amino acids are due to their R-Group. |
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| 843. |
Read the given statements and select the correct option. Statement 1 : Low temperature destroys enzymes by causing their denaturation. Statement 2 : High temperature preserves the enzymes in their inactive state.A. Both statements 1 and 2 are correct.B. Statements 1 is correct but statement 2 is incorrect.C. Statement 1 is incorrect but statement 2 is correct.D. Both statements 1 and 2 are incorrect. |
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Answer» Correct Answer - D Low temperature preserves the enzymes in their inactive state. Therefore, it is used in preservation of foods inside cold storages. Low temperature present inside cold storages prevents spoilage of food. High temperature destroys enzymes by causing their denaturation. This occurs at `50^(@)C` or so. In between the minimum and maximum temperature, the reaction velocity doubles for every `10^(@)C` rise in temperature (general rule of thumb). |
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| 844. |
Assertion : Enzyme becomes inactive below minimum temperature. Reason : The inactivity of the enzymes is due to denaturation.A. If both the asseration and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and rreason are true but the reason not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If the assertion is false but reason is true |
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Answer» Correct Answer - C (c) Enzyme becomes inactive below minimum temperature. Low temperature preserves the enzymes in the inactive state. High temperature destroys enzymes by causing their denaturation. |
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| 845. |
The human body does not produce.A. enzymesB. DNAC. vitaminsD. hormones |
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Answer» Correct Answer - C Human body does not synthesise vitamins. |
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| 846. |
Which of the following biomolecules contains non-transition metal ion ?A. insulinB. chlorophyllC. haemoglobinD. vitamin B-12 |
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Answer» Correct Answer - B |
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| 847. |
Which of the following biomolecules contains non-transition metal ion ?A. vitamin `B_(12)`B. chlorophyllC. haemoglobinD. Insulin |
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Answer» Correct Answer - B Chlorophyll contains `Mg^(2+)` ion. |
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| 848. |
Mixture of chloroxylenol and terpineol acts as `:`A. analgesicB. antisepticC. antipyreticD. antibiotic |
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Answer» Correct Answer - B (a) The medicine which are used to reduce pain are known as anagesics. For example paracetamol, ibuprofen, morphine , etc. (b) The chemicals which either prevent the growth of microoraganisms of kill them but are not harmful to the living tissues are known as antiseptics e.g. savlon, dettol. Dettol is one of the most commonly used antiseptics. It is a mixture of chloroxylnol and `alpha-`terpineoul. (c) The chemical substance which are used to bring down body temperature during fever are called antipyretic, e.g. aspirin, novalgin, etc. (d) The chemicals which are obtained form microoganisms such as bacteria, fungi, etc., or by synthetic methods and used to inhibit the growth or even kill the microooganisms are called antibiotic, e.g. penicillin, chloramphenicol, etc, |
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| 849. |
An example of feedback inhibition isA. cyanide action on cytochromeB. sulpha drug on folic acid synthesizer bacteriaC. allosteric inhibition of hexokinase by glucose-6-phosphateD. reaction between succinic dehydrogenase and succinate |
| Answer» Correct Answer - C | |
| 850. |
Casein of milk isA. GlycoproteinB. PhosphoproteinC. ChromoproteinD. Metalloprotein |
| Answer» Correct Answer - B | |