X-ray films have an emulsion on one or both sides of a support material. The emulsion contains particles  of,
A. Silver nitrate crystal
B. Metallic silver in gelatine
C. Silver bromide in gelatine
D. Silver nitrate in gelatine
E. Potassium bromide in gelatine

1 Answer

Answer :

C. Silver bromide in gelatine

Related questions

Description : The chemical used for cloud seeding for artificial rains is - (1) Silver Nitrate (2) Potassium Bromide (3) Silver Iodide (4) Potassium Nitrate

Last Answer : (3) Silver Iodide Explanation: The chemical used for cloud seeding for artificial rains is silver iodide.

Description : Which of the following chemicals is used in photography? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Last Answer : (2) Silver bromide Explanation: Silver bromide (AOBr), a soil , pale-yellow, water insoluble salt well known (along with other silver hali(les) for its unusual sensitivity to light:. This ... making the Shroud of Turin. The salt can be found naturally as the mineral bromargyrite (bromyrite).

Description : The chemical used for cloud seeding for artificial rains is (1) Silver Nitrate (2) Potassium Bromide (3) Silver Iodide (4) Potassium Nitrate

Last Answer : Silver Iodide

Description : Which of the following chemicals is used in photography ? (1) Aluminium hydroxide (2) Silver bromide (3) Potassium nitrate (4) Sodium chloride

Last Answer : Silver bromide

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.

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

Last Answer :  Silver bromide 

Description : A raised dot on X ray films is to: A. Orient exposure side B. Differentiate between left and right side C. Dip during developing

Last Answer : A. Orient exposure side

Description : The chemical used in developing photographic films is – (1) silver bromide (2) hypo (3) sodium sulphate (4) hydroquinone

Last Answer : (1) silver bromide Explanation: Tritium is a radioactive isotope of hydrogen. It is the lightest radioactive element.

Description : The chemical used in developing photographic films is (1) silver bromide (2) hypo (3) sodium sulphate (4) hydroquinone

Last Answer : silver bromide

Description : Choose a statement that correctly defines the term AMALGAM: A. Amalgam is a metallic powder composed of silver, tin, copper and zinc B. Amalgam is an alloy of two or more metals that have been dissolved in ... is mixed with mercury E. Amalgam is an alloy of two or more metals, one of them is tin

Last Answer : C. Amalgam is an alloy of two or more metals, one of them is mercury

Description : Which class of solids could have London Forces the attractive forces between particles in crystal lattice positions? w) ionic x) covalent y) metallic z) molecular

Last Answer : ANSWER: Z -- MOLECULAR

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)

Description : Hypo, used in photography, is chemically (a) silver bromide (b) sodium thiosulphate (c) sodium phosphate (d) silver nitrate

Last Answer : Ans:(b)

Description : (2) stabilise the colloid and prevent crystallisation Explanation: Gelatine, being a colloid, has the property of preventing crystallization. In ice lollies and icecream this is demonstrated by the formation ... does not become grainy or sandy due to the slow crystallisation of lactose with time.

Last Answer : Glycol is added to aviation gasoline because it - (1) reduces evaporation of petrol (2) increases efficiency of petrol (3) prevents freezing of petrol (4) reduces consumption of petrol

Description : Philosopher’s wool contains zinc as its (a) oxide (b) bromide (c) nitrate (d) sulphide

Last Answer : Ans:(a)

Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.

Description : Photographic plates are coated with (A) Silver nitrate (B) Silver halide (C) Calcium silicate (D) Metallic silver

Last Answer : (B) Silver halide

Description : Photographic plates are coated with (A) Silver nitrate (B) Silver halide (C) Calcium silicate (D) Metallic silver

Last Answer : (B) Silver halide

Description : On an X ray you find the cement of the previous root canal treatment is extending 1mm beyond the apex without any symptoms; what would you do: A. Remove restoration material and retreat B. Apiectomy C. Leave as is until any complications occur

Last Answer : C. Leave as is until any complications occur

Description : On an X ray you find the Gutta Percha cone extending 1mm beyond the apex without any symptoms, what would you do: A. Remove restoration material until you are able to withdraw the Gutta Percha cone B. Apiectomy C. Leave as is until any complications occur

Last Answer : C. Leave as is until any complications occur

Description : Elastomers are:** A. Hydrophilic B. Hydrophobic C. Water-loving impression material D. Potassium alginates E. None of the above

Last Answer : B. Hydrophobic

Description : What is the double replacement for potassium chloride plus silver nitrate?

Last Answer : The chemical reaction is:KCl + AgNO3 = AgCl(s) + KNO3

Description : What is the double replacement for potassium chloride plus silver nitrate?

Last Answer : The chemical reaction is:KCl + AgNO3 = AgCl(s) + KNO3

Description : A 'breath test' used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium permanganate-sulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Last Answer : (1) potassium dichromatesulphuric acid Explanation: The main constituent of alcohol is Ethanol and the concentration of ethanol in a sample can be determined by back titration with acidified potassium ... contact with the yellow dichromate-coated crystals, the color changes from yellow to green.

Description : A ‘breath test’ used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium perma-nganatesulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate

Last Answer : potassium dichromate-sulphuric acid

Description : The best method to take X-ray of the maxillary sinus is, A. Periapical radiograph B. Panoramic view C. Lateral cephaloghraph D. Occipitomental view E. Reverse Towne’s view

Last Answer : D. Occipitomental view

Description : .Which of the following is true:  A. Antibiotics are useful in the treatment of periodontitis   B. Trauma from occlusion causes thickening of the marginal gingivae  C. Periodontitis is the ... can be identified by x-ray  E. Periodontitis is the most common disease in the oral cavity

Last Answer : E. Periodontitis is the most common disease in the oral cavity

Description : How can a periodontal pocket be recognised:** A. X-Ray B. Periodontal probe / Calibrated probe C. Periodontal marker D. Bitewing radiograph E. Sharp explorer F. Study cast

Last Answer : B. Periodontal probe / Calibrated probe

Description : Which of the following statement is correct for a periodontal disease:** A. The finger pressure is enough for mobility diagnosis B. A communicable disease C. X ray after intra alveolar surgery ... diagnosis healing D. Systemic diseases have no effects on it E. ZoE paste will accelerate healing

Last Answer : E. ZoE paste will accelerate healing

Description : When no radiation shield is available, the operator should stand out of the primary x ray beam and a distance from the patient’s head of at LEAST: A. 0.5 metres B. 1 metre C. 1.5 metres D. 2 metres E. 3 metres

Last Answer : Option C

Description : A patient with a history of angina suffers an attack while in the dental chair. Prompt relief can be anticipated in MOST instances from: A. Oral administration of short acting ... epinephrine D. Sublingual administration of glyceryl tri-nitrate E. Putting the patient in upright position

Last Answer : D. Sublingual administration of glyceryl tri-nitrate

Description : Absence of clearly defined crystal lamina dura is because: A. Pathognomonic of periodontal disease B. Indicative of attachment loss C. Associated with periodontal pocket D. Commonly related to radiograph angulation

Last Answer : D. Commonly related to radiograph angulation

Description : Chronic inflammatory periodontal diseases originate in: A. The marginal gingiva B. The crystal alveolar bone C. The cervical cementum

Last Answer : B. The crystal alveolar bone

Description : The type of crystal lattice exemplified in a diamo is: w) ionic crystal x) covalent network crystal y) metallic crystal z) covalent molecular crystal

Last Answer : ANSWER: X -- COVALENT NETWORK CRYSTAL

Description : The mineral halite is: w) potassium chloride x) sodium chloride y) calcium chloride z) calcium bromide

Last Answer : ANSWER: X -- SODIUM CHLORIDE

Description : Which of the following would be least soluble in water? w) Carbon Tetrachloride x) Sodium Oxide y) Magnesium Bromide z) Potassium Phosphate

Last Answer : ANSWER: W -- CARBON TETRACHLORIDE 

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

Description : The pH of water will be decreased to below pH 7 by the hydrolysis of which of the following? w) sodium carbonate x) sodium chloride y) ammonium chloride z) potassium bromide

Last Answer : ANSWER: C -- AMMONIUM CHLORIDE

Description : When should metallic framework not be contaminated during the fabrication of a porcelain fused to metal crown: A. Between bisque stage and glazing stage B. Between preheat and opaque stages C. Between opaque and bisque stages D. Between one opaque and two opaque stages

Last Answer : B. Between preheat and opaque stages

Description : On X-ray, the buccal roots of 16 is considerably elongated; this is a result of, A. Too great vertical angulation B. Inadequate vertical angulation C. Excessive object film distance

Last Answer : B. Inadequate vertical angulation

Description : After obturation and on X-ray you notice the obturation materials are 1mm beyond apex. What is your first management? A. Refill the canal B. Pull the GP cone about 1mm out and take a new X-ray C. Leave it as it

Last Answer : B. Pull the GP cone about 1mm out and take a new X-ray

Description : The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Last Answer : A. The primary X-ray

Description : The developing time for dental x ray should be: A. 5 minutes at 20ºC B. At least 10 minutes C. Until it clears up D. 2 minutes at 40ºC

Last Answer : A. 5 minutes at 20ºC

Description : A 8 years-old patient has 3 first premolars erupted and a swelling on the ridge of the un-erupted premolar. X ray shows a fully developed crown and ¾ roots development with no ... recision to allow eruption C. Soft tissues recision accompanied with orthodontic appliance to help with eruption

Last Answer : C. Soft tissues recision accompanied with orthodontic appliance to help with eruption

Description : A filter is used in x ray machines to: A. Reduce exposure time B. Remove low energy x rays

Last Answer : B. Remove low energy x rays

Description : Full mouth x ray survey at birth reveals: A. Ten teeth are present B. Twenty teeth are present C. Twenty four teeth are present

Last Answer : C. Twenty four teeth are present

Description : A periapical x ray of 11 and 12 region shows the vimen, floor of the nasal fossa and the median palatine suture. The other feature that can be seen is: A. Maxillary sinus B. Incisive foramen C. Zygomatic process D. Wall of maxillary sinus

Last Answer : B. Incisive foramen

Description : You notice a radiolucent area close to the apex of the central incisor, on a second x ray the radiolucent area moves; it is likely to be: A. Cyst B. Abscess C. Granuloma D. Incisive foramen in sup lingual for amen inf

Last Answer : D. Incisive foramen in sup lingual for amen inf