Description : Picric acid is:
Last Answer : Picric acid is: A. B. C. D.
Description : Which one of the following is used as preservative for foodstuff? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride
Last Answer : (1) Sodium Benzoate Explanation: Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), ... (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.
Description : Hydrochloric acid is also known as - (1) Galic acid (2) Picric acid (3) Muriatic acid (4) Chloric acid
Last Answer : (3) Muriatic acid Explanation: Hydrochloric acid was historically called acidum sails, muriatic acid, and spirits of salt because it was produced from rock salt and green vitriol and later ... similar substances common salt and sulfuric acid. Hydrochloric acid is found naturally in gastric acid.
Description : Methyl benzoate on hydrolysis gives (a) Acetic acid (b) Benzoic acid (c) Picric acid (d) Phenylacetic acid
Last Answer : Benzoic acid
Description : Which of the following is not a carboxylic acid? (a) Malonic acid (b) Acetic acid (c) Picric acid (d) Adipic acid
Last Answer : Picric acid
Description : Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid
Last Answer : Acetylene
Description : Which of the following is used as an antifreeze? (a) Ethylene glycol (b) Glycerol (c) Diethyl ether (d) Picric acid
Last Answer : Ethylene glycol
Description : Alkaloids are NOT precipitated by (A) Mayer's reagent (B) Dragendroff Reagent (C) Picric acid (D) Millon's reagent
Last Answer : (D) Millon's reagent
Description : Hydrochloric acid is also known as (1) Galic acid (2) Picric acid (3) Muriatic acid (4) Chloric acid
Last Answer : Muriatic acid
Description : Which one of the following is used as preservative for foodstuff ? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride
Last Answer : Sodium Benzoate
Description : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .
Last Answer : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction ... . changes from +2 to +4 D. does not change.
Description : A mixture of two organic compound gives red coloured precipitate with cuprous chloride and silver mirror on heating with Zn and `NH_(4)Cl` followed by
Last Answer : A mixture of two organic compound gives red coloured precipitate with cuprous chloride and silver mirror on heating ... mixture contains : A. B. C. D.
Description : Haemoglobin is 1. The colouring matter of leaves of plants 2. The colouring matter of blood 3. A compound that is highly coloured 4. A compound that contains iron The correct answers are: (a) 1, 2 and 4 (b) 2, 3 and 4 (c) 1, 2, 3 and 4 (d) 1, 2 and 3
Last Answer : Ans:(b)
Description : A green coloured solid compound ̳X , gets oxidized to reddish brown solid in presence of air. ̳X on heating gives brown coloured solid ̳Y and two pungent smelling gases ̳A and ̳B . ̳A turns acidified potassium ... , SO 3 , decomposition (d) FeSO 4 , Fe 2 O 3 , SO 3 , SO 2 , decomposition
Last Answer : (c) FeSO 4 , Fe 2 O 3, SO 2 , SO 3 , decomposition
Description : What is a chromophore? A. A coloured compound B. A group of atoms in compound responsible for electromagnetic radiation C. A group of atoms in a compound responsible for the absorption of electromagnetic radiation D. A group of atoms in coloured compound
Last Answer : A group of atoms in a compound responsible for the absorption of electromagnetic radiation
Description : If I am coloured, I smell, if I am burned, I smell, orange and yellow will melt me. What am I? -Riddles
Last Answer : A Candle.
Description : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable and has octahedral geometry. `X
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is ... and has octahedral geometry. `X` can be
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable ... `SF_(2)` D. `S_(2)F_(6)`
Description : Yellow coloured rose species is
Last Answer : Ans. R. foitida
Description : Yellow coloured glass is prepared by adding
Last Answer : ferric compounds.
Description : A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? (A) Yellow paint (B) White paint (C) Black paint (D) Grey paint
Last Answer : (C) Black paint
Description : Which of the following coloured light has the least speed in glass prism? (a) Violet (b) Yellow (c) Red (d) Green
Last Answer : (a) Violet
Description : Commercial nitric acid is coloured because it contains dissolved – (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities
Last Answer : (3) Nitrogen dioxide Explanation: Commercial nitric acid has a brown colour due to dissolved NO2. The procedure of bubbling dry air through warm commercial nitric acid, is to drive away the dissolved nitrogen dioxide so that the acid becomes colourless.
Description : Commercial nitric acid is coloured because it contains dissolved : (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities
Last Answer : Nitrogen dioxide
Description : Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be
Last Answer : Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be A. B. C. D.
Description : In cold countries alcohol is preferred to mercury as a thermometric liquid because (a) alcohol is a better conductor of heat (b) alcohol can be coloured and its level seen easily (c) alcohol has a lower freezing point than mercury (d) alcohol is cheaper than mercury
Last Answer : Ans:(c)
Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science
Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent
Description : Your Thoughts About Coloured Money?
Last Answer : answer:Harder to counterfeit. Looks pretty.
Description : Why do a lot of asian people from Pakistan/India have interestingly coloured eyes?
Last Answer : My guess is that it is all middle eastern territory and there has always been a huge mix and the races have probably blended over the hundreds of years. Nomads had a tendency to roam and so they mixed in with the different races.
Description : Where can I buy plain coloured, medium sized, Skull Candy headphones in the UK?
Last Answer : I’m not 100% positive but try these http://www.skullcandyuk.com/stockists.php
Description : Is there a design format that allows you to place a logo in Word on a coloured background, without a white box around the logo?
Last Answer : I was going to recommend .gif or .png, until I realized you had tried that. I'm not sure why .gif and .png don't work, because they do for me. Are you sure transparency exists in the ... format picture tools and set a transparent color (note that it will take out that color everywhere in the logo).
Description : tips of cedar trees rust coloured throughout
Last Answer : Need Answer
Description : I'm flat. You use me everyday. You need me to live. But you give me away everyday. I'm coloured and I have a founding father on me. What am I? -Riddles
Last Answer : A bill.
Description : I am a window, I am a lamp, I am clouded, I am shining, and I am coloured; set in white, I fill with water and overflow. I say much, but I have no words. What am I? -Riddles
Last Answer : I am an eye.
Description : Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden block covered with coloured paper with picture of Santa Claus on it. -Maths 9th
Last Answer : Length of box (l) = 80 cm Breadth (b) = 40 cm and height (h) = 20 cm ∴ Total surface area = 2(lb + bh + hl) = 2[80 x 40 + 40 x 20 + 20 x 80] cm² = 2[3200 + 800 + 1600] ... of one sheet = (40 cm)² = 1600 cm² ∴ No. of sheets required for the box = 11200 = 1600 = 7 sheets
Description : Radha made a picture of an aeroplane with coloured paper as shown in figure. Find the total area of the paper used. -Maths 9th
Last Answer : For surface I: It is an isosceles triangle whose sides are a = 5 cm, b = 5 cm, c = 1 cm = (0.75 x 3.3) cm2 = 2.475 cm2 (approx.) For surface II: It is a rectangle with length 6.5 cm and breadth 1 cm. ∴ Area of ... surface V) = [2.475 + 6.5 + 1.3 + 4.5 + 4.5] cm2 = 19.275 cm2 = 19.3 cm2 (approx.)
Description : Name the following: (a) A metal, which is preserved in kerosene. (b) A lustrous coloured non-metal. (c) A metal, which can melt while kept on palm. (d) A metal, which is a poor conductor of heat. -Chemistry
Last Answer : a) Sodium is preserved in kerosene. (b) Iodine is lustrous coloured non-metal. (c) Gallium. ‘ (d) Lead.
Description : Which cells of the retina enable us to see coloured objects around us? -Biology
Last Answer : answer:
Description : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin formed by reduction of bile pigment.
Last Answer : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin ... D. If both Assertion & Reason are false.
Description : Stool of a person is whitish grey coloured due to malfunction of which of the following organs?
Last Answer : Stool of a person is whitish grey coloured due to malfunction of which of the following organs? A. Pancreas B. Spleen C. Kidney D. Liver
Description : In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revo
Last Answer : In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the ... due to very poor sunlight D. Protective mimicry
Description : Coloured rock paintings were first done by :
Last Answer : Coloured rock paintings were first done by : A. Cro-magnon man B. Java man C. Peking man D. Neanderthal man
Description : Praying Mantis is green coloured predator insect that shows mimicry of the type
Last Answer : Praying Mantis is green coloured predator insect that shows mimicry of the type A. concealing- ... C. alluring -aggressive D. concealing -aggreassive
Description : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` and `NH_(4)Cl` gives an octahedral complex Y in the pre
Last Answer : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` ... solution is pink D. Z is a tetrahedral complex.
Description : Which of the following produce red coloured flame during flame test ?
Last Answer : Which of the following produce red coloured flame during flame test ? A. `Li` B. `Ca^(2-)` C. `Sr^(2-)` D. `Ba^(2-)`
Description : In Borax bead test, metal oxides react with `B_(2)O_(3)` and form a coloured bead. This bead contains
Last Answer : In Borax bead test, metal oxides react with `B_(2)O_(3)` and form a coloured bead. This bead ... B. metaborate ion C. double oxide D. tetraborate ion
Description : In which of the following reactions a brown coloured gas is evolved ?
Last Answer : In which of the following reactions a brown coloured gas is evolved ? A. `KBr (s) + " dil." H_(2)SO_(4) to` ... D. `AgNO_(3)(s)+conc. H_(2)SO_(4) to`