Give the chemical formula for Borax. (Na2) B4 (O7) .10(H2) O   

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Answer :

 Give the formula for Peral Ash. The formula for Peral Ash is K2CO3.   

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Description : Chemical formula of washing soda is (1) Na2 SO4 .10H2O (2) NaHCO3 (3) Na2CO3 .10H2O (4) Ca(OH)2

Last Answer : Na2CO3 .10H2O

Description : Give the formula of Borax. Borax is chemically called as. Borax Na2B4O7 10H2O is chemically called as hydrated sodium tetra borate

Last Answer : Garnet is the ore of which element. Give its chemical formula. Garnet is Silicate ore of Aluminium (MgFe) 3 AlSi3O2.

Description : What is the number of Cr 's in the compound K2 Cr2 O7 ?

Last Answer : Suppose the oxidation number of Cr is x. Now , the oxidation number of K₂Cr₂O7 = 0 (1.2) + (2.x) + (-2) .7 = 0 2x-12 = 0 2x = 12 x = 6 Cr + 6.

Description : Which of the following belong to the family of C-X-C chemokines? a. IL-8 b. IL-10 c. Growth Related Oncogene-a d. Leukotreine B4 e. b Thromboglobulin

Last Answer : Answer: a, c, e A particularly important group of novel chemotactic cytokines has been elucidated over the last decade. Twelve are known and are listed below. C-X-C ... in vivo cytokine networks involving these molecules which regulate chemotaxis, and other fundamental aspects of inflammation

Description : What is the complete ionic equation for the reaction between na2 So4 and cacl2?

Last Answer : Feel Free to Answer

Description : Out of (a) 0.01 M KNO3 , (b) 0.01 M Na2 SO4 which aqueous soln. will exhibit high B. P.?

Last Answer : (a) 0.01 M Na2 SO4

Description : What group in the Home tab would be used to change the format of cell B2 to match cell B4?

Last Answer : Feel Free to Answer

Description : If you copied b4 to c6 what would be the resulting cell refernce in c6?

Last Answer : Need answer

Description : Montelukast blocks the action of the following autacoid: A. Prostacyclin B. Platelet activating factor C. Leukotriene B4 D. Leukotriene C4/D4

Last Answer : D. Leukotriene C4/D4

Description : The most prominent action of leukotriene B4 is: A. Vasodilatation B. Uterine contraction C. Platelet aggregation D. Chemotaxis of neutrophils and monocytes

Last Answer : D. Chemotaxis of neutrophils and monocytes

Description : The chemical used as a fixer in photography is - (1) sodium thiosulphate (2) sodium sulphate (3) borax (4) ammonium sulphate

Last Answer : (1) sodium thiosulphate Explanation: Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate — commonly called hypo — and ammonium thiosulfate — commonly used in modern rapid fixer formulae.

Description : The chemical used as a fixer in photography is-----? A. sodium sulphate B. borax C. sodium thiosulphate (Answer) D. ammonium sulphate

Last Answer : C. sodium thiosulphate (Answer)

Description : Which does not give borax bead test?

Last Answer : Which does not give borax bead test? A. `Cr^(3+)` B. `Cu^(2+)` C. `Mn^(2+)` D. `Zn^(2+)`

Description : A 1-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPa and the temperature to 400°. Determine the heat added.  a) 1378.7 kJ  b) 1348.5 kJ  c) 1278,7 kJ  d) 1246,5 kJ Formula: Q = (h2 – p2v2) –(h1 –p1v1)

Last Answer : 1378.7 kJ

Description : Which of the following produces H2 gas, when reacts with acid? (1) Zn (2) S (3) C (4) O

Last Answer : (1) Zn Explanation: As, Zinc is a metal so it will produce H2 gas when reacts with acid. Active metals react with acids to produce hydrogen because they are above hydrogen in the activity series.

Description : 1. Who is the executive head of a Municipal Corporation? 2. What is the maximum number of hydrogen bonds in a H2 O molecule? 3. How is the contribution of agriculture to India's ... largest number of sugar mills? 20. Among which class did Indian National Congress find wide acceptance initially?

Last Answer : Answer : 1. Commissioner 2. 4 3. Decreasing 4. Sone 5. Aurangzeb 6. Arjun Singh 7. B. H. C. 8. By consensus 9. Narmada 10. Mir Jafar 11. 30 - 300 MHz 12. Satellite launching 13. National ... 15. Agra 16. Ecology 17. Government of India Act, 1935 18. Urea 19. Uttar Pradesh 20. Educated middle class

Description : What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O

Last Answer : (a) sodium carbonate,Na 2 CO 3

Description : The chemical formula for hydrated copper sulphate is – (a) CuSo4.2H 2 O (b) CuSo4.6H 2 O (c) CuSO 4 .4H 2 O (d) CuSO 4 .5H 2 O

Last Answer : (d) CuSO 4 .5H 2 O

Description : Will borax dissolve in oils?

Last Answer : No, I don’t think so, since it is a sodium (salt) compound.

Description : Is it safe to mix borax with peroxide bleach?

Last Answer : answer:Don’t do it. The borax should be enough, and if you add a cup or two of white vinegar to the rinse cycle, that should take out any residues left over. I used to wash cloth diapers in borax and baking soda, so I can vouch for its power.

Description : Does the borax and sugar combination really work for killing roaches?

Last Answer : Yes, the borax really works. There is a product called Max Attrax that contains boric acid, and it works great. No need to use sugar.

Description : Borax and soap for face cleansing?

Last Answer : A quick google suggests that she’s not the only one to say this. Personally I think it might be a bit harsh but then I have pretty sensitive skin. Bit woried about one of your topics. Can’t really see the relevance

Description : is it harmful to have cats exposed to borax

Last Answer : Need Answer

Description : Which of the following option is correct regarding the structure of borax?

Last Answer : Which of the following option is correct regarding the structure of borax? A. No. of hydrated water malecule ... bead of `NaBO_(2)&B_(2)O_(3)`

Description : An aqueous solution of borax is

Last Answer : An aqueous solution of borax is A. Turns blue litmus to red B. Is a powerful oxidising agent C ... Is a popular bleach used in paper and pulp industry

Description : Which metal gives violet colour in oxidising flame when heated with borax ?

Last Answer : Which metal gives violet colour in oxidising flame when heated with borax ? A. Fe B. Pb C. Co D. Mn

Description : Metal salts, which respond to Borax bead test ?

Last Answer : Metal salts, which respond to Borax bead test ? A. Nickel salts B. Copper salts C. Cobalt salts D. Aluminium salts

Description : Borax bead is responded generally by :

Last Answer : Borax bead is responded generally by : A. Alkali metal salt B. Alkaline earth metals C. p-block metal salt D. d-block metal salt

Description : The compound formed in the borax bead test of `Cu^(2+)` ion in oxidising flame is :

Last Answer : The compound formed in the borax bead test of `Cu^(2+)` ion in oxidising flame is : A. Cu B. `CuBO_(2)` C. `Cu(BO_(2))_(2)` D. None of these

Description : In the Borax bead test of `Co^(2+)`, the blue colour of bead is due to the formation of :

Last Answer : In the Borax bead test of `Co^(2+)`, the blue colour of bead is due to the formation of : A. `B_(2)O_(3)` B. ... B_(2)` C. `Co(BO_(2))_(2)` D. `Co O`

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 : How does borax make slime?

Last Answer : Need answer

Description : Is Borax soap safe for your skin?

Last Answer : What is the answer ?

Description : Can borax soap kill bugs under your skin?

Last Answer : What is the answer ?

Description : How do you make slime without glue borax or cornstrach?

Last Answer : What is the answer ?

Description : The presence of Cobalt in Vitamin B12 was established for the first time by – (1) Hydrolysis test (2) Spectroscopy (3) Borax-Bead test (4) Sodium Nitroprusside test

Last Answer : (2) Spectroscopy Explanation: Atomic absorption spectroscopy is an analytical chemistry technique used for determining concentration of particular metal element and is widely used in pharmaceutics. It was used for the determination of cobalt in Vitamin B12.

Description : Which one of the following is extensively used for sterilizing water? (1) Bleaching powder (2) Alum (3) Borax powder (4) Soda powder

Last Answer : (1) Bleaching powder Explanation: Bleaching powder is extensively used in sterilizing water. Calcium hypochlorite is a chemical compound with formula Ca(OCl)2. It is widely used for water treatment and as a ... has two forms: a dry form and a hydrated form. The hydrated form is safer to handle.

Description : Which of the following is responsible for the extra strength of pyrex glass? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Last Answer : (3) Borax Explanation: Older clear-glass Pyrex manufactured by Corning before 1998, Arc International's Pyrex products, and Pyrex laboratory glassware is made of borosilicate glass. According ... glass cookware manufactured by World Kitchen is made of tempered sodalime glass instead of borosilicate.

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.

Description : What are the constituents of bead formed in borax bead test?

Last Answer : Ans: Sodium metaborate and boric anhydride

Description : The function of borax / aluminium powder is to remove the

Last Answer : air bubbles in glass.

Description : What is the role of borax or aluminium powder in the manufacture of glass?

Last Answer : The function of borax / aluminium powder is to remove the air bubbles in glass.

Description : Boron content in borax (suhaga) is (a) 11% (b) 25%(c) 19% (d) 39%

Last Answer : (a) 11%

Description : Khaira disease of rice can be controlled by spraying – 1) Copper sulphate 2) Calcium sulphate 3) Zinc sulphate 4) Borax

Last Answer : 3) Zinc sulphate

Description : Which of the following is used as a binding material in soap to improve soap texture? (A) Rosin (B) Borax (C) Benzyl acetate (D) Sodium carbonate

Last Answer : (B) Borax

Description : The role of borax in cold creams is (A) anti-microbial agent (B) to provide fine particles to polish skin (C) in-situ emulsifier (D) antioxidant

Last Answer : (A) anti-microbial agent

Description : The MOST effective manner to produce a hard surface on a cast is by: A. Employ as much water as possible on mixing B. Employ as little water as possible on mixing C. Adding 2% of borax to the mix D. Adding calcium tetraborate E. None of the above

Last Answer : B. Employ as little water as possible on mixing

Description : The presence of Cobalt in Vitamin B12 was established for the first time by (1) Hydrolysis test (2) Spectroscopy (3) Borax-Bead test (4) Sodium Nitroprusside test

Last Answer : Spectroscopy

Description : Which of the following is responsible for the extra strength of pyrex glass ? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Last Answer : Borax

Description : Which one of the following is extensively used for sterilizing water ? (1) Bleaching powder (2) Alum (3) Borax powder (4) Soda powder

Last Answer : Bleaching powder