Compounds of iodine are NOT used for which of the following? w) as a refrigerant x) in photographic film y) as an essential part of diet z) as an antiseptic

Compounds of iodine are NOT used for which of the following? w) as a refrigerant x) in photographic film y) as an essential part of diet z) as an antiseptic
by

1 Answer

Answer :

ANSWER: W -- AS A REFRIGERANT
by

Related questions

Which of the following halogens does NOT replace the other halogens from their compounds? w) fluorine x) iodine y) bromine z) chlorine

Description : Which of the following halogens does NOT replace the other halogens from their compounds? w) fluorine x) iodine y) bromine z) chlorine

Last Answer : ANSWER: X -- IODINE

Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film (c) the silver bromide present on the plate is very sensitive to light and black paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Description : Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film ... paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Last Answer : Ans:(c)

Carbon dioxide has each of the following uses except: w) refrigerant x) manufacture of baking soda y) fire extinguisher z) valuable reducing agent

Description : Carbon dioxide has each of the following uses except: w) refrigerant x) manufacture of baking soda y) fire extinguisher z) valuable reducing agent

Last Answer : ANSWER: Z -- VALUABLE REDUCING AGENT

One of the following is a device that detects charged particles but does NOT show their tracks. Is this device the: w) spark chamber x) photographic plate y) scintillation counter z) bubble chamber

Description : One of the following is a device that detects charged particles but does NOT show their tracks. Is this device the: w) spark chamber x) photographic plate y) scintillation counter z) bubble chamber

Last Answer : ANSWER: Y -- SCINTILLATION COUNTER 

The antiseptic compound present in dettol is – (1) Iodine (2) Enloroxylenol (3) Biothional (4) Cresol

Description : The antiseptic compound present in dettol is – (1) Iodine (2) Enloroxylenol (3) Biothional (4) Cresol

Last Answer : (2) Enloroxylenol Explanation: The active ingredient in Dettol that confers its antiseptic property is chloroxylenol (C8H9ClO), an aromatic chemical compound. Chloroxylenol comprises 4.8% of Dettol's total mixture, with the rest composed of pine oil, isopropanol, castor oil soap, caramel and water.

Which one of the following is used in the preparation of antiseptic solution? (1) Potassium nitrate (2) Iodine (3) Iodine chloride (4) Potassium chloride

Description : Which one of the following is used in the preparation of antiseptic solution? (1) Potassium nitrate (2) Iodine (3) Iodine chloride (4) Potassium chloride

Last Answer : (2) Iodine Explanation: Antiseptics are chemical agents that slow or stop the growth of micro-organisms (germs) on external surfaces of the body and help prevent infections.

The antiseptic compound present in dettol is (1) Iodine (2) Enloroxylenol (3) Biothional (4) Cresol

Description : The antiseptic compound present in dettol is (1) Iodine (2) Enloroxylenol (3) Biothional (4) Cresol

Last Answer : Enloroxylenol

Which of the following is the same for both radioactive iodine and stable iodine? w) number of neutrons x) mass number y) half-life z) chemical properties

Description : Which of the following is the same for both radioactive iodine and stable iodine? w) number of neutrons x) mass number y) half-life z) chemical properties

Last Answer : ANSWER: Z -- CHEMICAL PROPERTIES

Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine

Description : Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine

Last Answer : ANSWER: Y -- FLUORINE

Which of the following molecules is polar? w) Iodine x) Carbon Dioxide y) Carbon Monoxide z) Chlorine

Description : Which of the following molecules is polar? w) Iodine x) Carbon Dioxide y) Carbon Monoxide z) Chlorine

Last Answer : ANSWER: Y -- CARBON MONOXIDE 

Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Description : Which of the following substances would be expecte to have the highest melting point? w) Potassium Bromide x) Iodine y) Methane z) Hydrogen Chloride

Last Answer : ANSWER: W -- POTASSIUM BROMIDE

What is the only nonmetal element that is a liquid room temperature? w) phosphorus x) bromine y) iodine z) arsenic

Description : What is the only nonmetal element that is a liquid room temperature? w) phosphorus x) bromine y) iodine z) arsenic

Last Answer : ANSWER: X -- BROMINE

The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE

Which of the following elements has the highest electronegativity? w) Lithium x) Iodine y) Cesium z) Oxygen

Description : Which of the following elements has the highest electronegativity? w) Lithium x) Iodine y) Cesium z) Oxygen

Last Answer : ANSWER: D -- OXYGEN

Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Description : Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Last Answer : (4) Sodium chloride Explanation: Antiseptics are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis, or putrefaction. Antiseptics are generally ... the body, and from disinfectants, which destroy microorganisms found on non-living objects.

Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Description : Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Last Answer : Sodium chloride

Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Description : Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride

Last Answer : (2) Silver bromide Explanation: Silver bromide, a soft, paleyellow, water insoluble salt well known for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.

Which one of the following metals is essential to the structure and functioning of hemoglobin? w) copper x) magnesium y) tin z) iron

Description : Which one of the following metals is essential to the structure and functioning of hemoglobin? w) copper x) magnesium y) tin z) iron

Last Answer : ANSWER: Z -- IRON

The radioactive element most commonly detected in humans is: w) potassium-40 x) cobalt-60 y) iodine-131 z) plutonium-238

Description : The radioactive element most commonly detected in humans is: w) potassium-40 x) cobalt-60 y) iodine-131 z) plutonium-238

Last Answer : ANSWER: W -- POTASSIUM-40

What radioactive element is routinely used in treating hyperthyroidism, and in reducing thyroid activity? w) Iron-59 x) Gold-198 y) Cobalt-60 z) Iodine-131

Description : What radioactive element is routinely used in treating hyperthyroidism, and in reducing thyroid activity? w) Iron-59 x) Gold-198 y) Cobalt-60 z) Iodine-131

Last Answer : ANSWER: Z -- IODINE-131

The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Description : The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Last Answer : ANSWER: Y -- IONIZATION OR DISSOCIATION 

Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide

Description : Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide

Last Answer : ANSWER: W -- PETROLEUM

Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane

Description : Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane

Last Answer : ANSWER: Z -- AN ALKANE

Which of the following nitrogen-containing compounds is most readily used by plants? w) nitrogen dioxide x) ammonia y) nitrous oxide z) nitrate

Description : Which of the following nitrogen-containing compounds is most readily used by plants? w) nitrogen dioxide x) ammonia y) nitrous oxide z) nitrate

Last Answer : ANSWER: Z -- NITRATE

Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Description : Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Last Answer : ANSWER: Z -- SELENIUM

In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Description : In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Last Answer : ANSWER: X -- SILICON-OXYGEN COMPOUNDS

A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Description : A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Last Answer : ANSWER: B -- ALKANES AND CYCLOALKANES

Which of the following compounds will be a nonelectrolyte when dissolved in water? w) sodium chloride x) potassium nitrate y) ethanol z) hydrogen chloride

Description : Which of the following compounds will be a nonelectrolyte when dissolved in water? w) sodium chloride x) potassium nitrate y) ethanol z) hydrogen chloride

Last Answer : ANSWER: Y -- ETHANOL 

Which one of the following compounds is amphiprotic in water? w) sodium chloride x) sodium sulfate y) sodium hydride z) sodium hydrogen carbonate

Description : Which one of the following compounds is amphiprotic in water? w) sodium chloride x) sodium sulfate y) sodium hydride z) sodium hydrogen carbonate

Last Answer : ANSWER: Z -- SODIUM HYDROGEN CARBONATE

The class of compounds implicated in the Antarctic ozone destruction is: w) RBC's x) DDT's y) CFC's z) PCB's

Description : The class of compounds implicated in the Antarctic ozone destruction is: w) RBC's x) DDT's y) CFC's z) PCB's

Last Answer : ANSWER: Y -- CFC'S

Which of the following group of compounds is most soluble in water? w) alkanes (pron: ak-KANES) x) alcohols y) aldehydes (pron: al-deh-HIDES) z) alkenes (pron: al-KEENS)

Description : Which of the following group of compounds is most soluble in water? w) alkanes (pron: ak-KANES) x) alcohols y) aldehydes (pron: al-deh-HIDES) z) alkenes (pron: al-KEENS)

Last Answer : ANSWER: X -- ALCOHOLS

Which of the following chemical compounds is an important aromatic hydrocarbon. Is it: w) methane x) ethane y) benzene z) propyne

Description : Which of the following chemical compounds is an important aromatic hydrocarbon. Is it: w) methane x) ethane y) benzene z) propyne

Last Answer : ANSWER: Y -- BENZENE

Which of the following four compounds would have t most ionic bond? w) CH4 x) LiF y) CsF z) N2

Description : Which of the following four compounds would have t most ionic bond? w) CH4 x) LiF y) CsF z) N2

Last Answer : ANSWER: Y -- CsF

Which of the following compounds is ONLY WEAKLY soluble in cold water? w) Silver Nitrate x) Sodium Carbonate y) Sodium Chloride z) Lead Chloride

Description : Which of the following compounds is ONLY WEAKLY soluble in cold water? w) Silver Nitrate x) Sodium Carbonate y) Sodium Chloride z) Lead Chloride

Last Answer : ANSWER: Z -- LEAD CHLORIDE 

A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Description : A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Last Answer : ANSWER: W -- ALKENES

Which of the following compounds has the lowest boiling points? w) CH4 x) CCl4 y) PH3 z) PCl3

Description : Which of the following compounds has the lowest boiling points? w) CH4 x) CCl4 y) PH3 z) PCl3

Last Answer : ANSWER: W -- CH4

Which of the following compounds has the highest boiling point? w) CH4 x) CCL4 y) HI z) IF5

Description : Which of the following compounds has the highest boiling point? w) CH4 x) CCL4 y) HI z) IF5

Last Answer : ANSWER: Z -- IF5

Members of which of the following classes of compounds generally produce acidic solutions when dissolved in water? w) metal oxides x) nonmetal oxides y) alcohols z) aldehydes

Description : Members of which of the following classes of compounds generally produce acidic solutions when dissolved in water? w) metal oxides x) nonmetal oxides y) alcohols z) aldehydes

Last Answer : ANSWER: X -- NONMETAL OXIDES

Which of the following compounds is the strongest base? w) NH3 x) PH3 y) H2O z) H2S

Description : Which of the following compounds is the strongest base? w) NH3 x) PH3 y) H2O z) H2S

Last Answer : ANSWER: W -- NH3

Which of the following compounds is the strongest acid? w) NH3 x) PH3 y) H2O z) H2S

Description : Which of the following compounds is the strongest acid? w) NH3 x) PH3 y) H2O z) H2S

Last Answer : ANSWER: Z -- H2S

Which of the following compounds contains both io and covalent bonds? w) Calcium Chloride x) Carbon Dioxide y) Calcium Fluoride z) Calcium Sulfate

Description : Which of the following compounds contains both io and covalent bonds? w) Calcium Chloride x) Carbon Dioxide y) Calcium Fluoride z) Calcium Sulfate

Last Answer : ANSWER: Z -- CALCIUM SULFATE

What is the name given to the non-superimposable mirror image forms of chiral compounds? w) cis-trans x) enantiomers y) functional isomers z) diasteriomers

Description : What is the name given to the non-superimposable mirror image forms of chiral compounds? w) cis-trans x) enantiomers y) functional isomers z) diasteriomers

Last Answer : ANSWER: X -- ENANTIOMERS

Which of the following compounds contains a double bond? w) butene x) acetylene y) butane z) propane

Description : Which of the following compounds contains a double bond? w) butene x) acetylene y) butane z) propane

Last Answer : ANSWER: W -- BUTENE 

Azo (pron: A-zo) Compounds characteristically are compounds containing the group: w) C2 x) N2 y) O2 z) Cl2

Description : Azo (pron: A-zo) Compounds characteristically are compounds containing the group: w) C2 x) N2 y) O2 z) Cl2

Last Answer : ANSWER: X -- N2 (N = N)

Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 and NH4Cl (read: N - H - 3 and N - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Description : Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 ... - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Last Answer : ANSWER: W -- HCL AND NaCl (read: H - C - L and N - A - C - L) 

In which of the following compounds is the bonding most covalent? w) NaCl x) F2 y) MgS z) Fe3C

Description : In which of the following compounds is the bonding most covalent? w) NaCl x) F2 y) MgS z) Fe3C

Last Answer : ANSWER: X -- F2

For which of the following classes of salts are all of its compounds soluble in water? w) sulfates x) nitrates y) hydroxides z) chlorides

Description : For which of the following classes of salts are all of its compounds soluble in water? w) sulfates x) nitrates y) hydroxides z) chlorides

Last Answer : ANSWER: X -- NITRATES

How does photographic image and film differ from other art forms like painting?

Description : How does photographic image and film differ from other art forms like painting?

Last Answer : Andre Bazin

Aryl benzene sulphonate (ABS) is a (A) Detergent (B) Plasticiser for unsaturated polyester (C) Starting material for the synthesis of glycerine (D) Coating ingredient for photographic film

Description : Aryl benzene sulphonate (ABS) is a (A) Detergent (B) Plasticiser for unsaturated polyester (C) Starting material for the synthesis of glycerine (D) Coating ingredient for photographic film

Last Answer : (A) Detergent

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to (A) Brighten the faint images (B) Remove metallic silver (C) Convert silver chloride to silver (D) Remove unexposed silver halide

Description : Function of sodium thiosulphate (hypo) in development of photographic film/plate is to (A) Brighten the faint images (B) Remove metallic silver (C) Convert silver chloride to silver (D) Remove unexposed silver halide

Last Answer : (D) Remove unexposed silver halide