The chemical used for destroying Fungi in water tanks is (1) Copper sulphate (2) Magnesium sulphate (3) Zinc sulphate (4) Nitric acid

The chemical used for destroying Fungi in water tanks is (1) Copper sulphate (2) Magnesium sulphate (3) Zinc sulphate (4) Nitric acid
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Copper sulphate 
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The chemical used for destroying Fungi in water tanks is - (1) Copper sulphate (2) Magnesium sulphate (3) Zinc sulphate (4) Nitric acid

Description : The chemical used for destroying Fungi in water tanks is - (1) Copper sulphate (2) Magnesium sulphate (3) Zinc sulphate (4) Nitric acid

Last Answer : (1) Copper sulphate Explanation: Copper sulfate is a chemical compound which is produced commercially by reacting various copper (II) compounds with sulfuric acid. This compound is used in a wide range ... sprayed on grapes in the form of a water solution to reduce the risk of fungal infestations.

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

Chemical that is used in photography - (1) Copper sulphate (2) Silver bromide (3) Magnesium sulphate (4) None

Description : Chemical that is used in photography - (1) Copper sulphate (2) Silver bromide (3) Magnesium sulphate (4) None

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

Nitric acid does not react with - (1) Gold (2) Copper (3) Zinc (4) Iron

Description : Nitric acid does not react with - (1) Gold (2) Copper (3) Zinc (4) Iron

Last Answer : (1) Gold Explanation: Concentrated nitric acid is a very strong oxidator capable of reacting with the noble metals such as copper or silver. Some precious metals, such as pure gold and ... pure gold does react with aqua regia, a mixture of concentrated nitric acid and hydrochloric acid.

Nitric acid does not react with (1) Gold (2) Copper (3) Zinc (4) Iron

Description : Nitric acid does not react with (1) Gold (2) Copper (3) Zinc (4) Iron

Last Answer : Gold

The substance coated on plastic tape recorder tapes is (a) zinc oxide (b) magnesium oxide (c) iron sulphate (d) iron oxide

Description : The substance coated on plastic tape recorder tapes is (a) zinc oxide (b) magnesium oxide (c) iron sulphate (d) iron oxide

Last Answer : Ans:(d)

Give reason: a) Magnesium reacts more vigorously with hydrochloric acid than zinc or copper. b) Iron takes more time to react with dilute hydrochloric acid than magnesium and zinc

Description : Give reason: a) Magnesium reacts more vigorously with hydrochloric acid than zinc or copper. b) Iron takes more time to react with dilute hydrochloric acid than magnesium and zinc

Last Answer : a) Magnesium reacts more vigorously with hydrochloric acid than zinc or copper. The reactivity of magnesium is higher than that of zinc. Hence it reacts with hydrochloric acid more vigorously. b) ... acid than magnesium and zinc As iron has lowest reactivity when compare to magnesium and zinc.

Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl

Which one is the major component of Bordeaux mixture a) Copper sulphate b) Sodium chloride c) Calcium chloride d) Magnesium sulphate

Description : Which one is the major component of Bordeaux mixture a) Copper sulphate b) Sodium chloride c) Calcium chloride d) Magnesium sulphate

Last Answer : a) Copper sulphate

Saw dust can be rendered chemically inert by boiling it in water containing (A) Ferrous sulphate (B) Potassium chloride (C) Ammonia (D) Nitric acid

Description : Saw dust can be rendered chemically inert by boiling it in water containing (A) Ferrous sulphate (B) Potassium chloride (C) Ammonia (D) Nitric acid

Last Answer : Answer: Option A

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

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

The emf of a Deniell cell “Zn | Zn2+|| Cu2+| Cu” can be increased by (A) Decreasing the surface area of the electrodes (B) Increasing the concentration of zinc sulphate solution (C) Increasing the surface area of the electrodes (D) Increasing the concentration of copper sulphate solution

Description : The emf of a Deniell cell “Zn | Zn2+|| Cu2+| Cu” can be increased by (A) Decreasing the surface area of the electrodes (B) Increasing the concentration of zinc sulphate solution (C) Increasing the surface area of the electrodes (D) Increasing the concentration of copper sulphate solution

Last Answer : (D) Increasing the concentration of copper sulphate solution

Why Magnesium , Copper and Zinc only react when dipped in hot water ?

Description : Why Magnesium , Copper and Zinc only react when dipped in hot water ?

Last Answer : Magnesium is the element at the top of the activation table. The value of its oxidation potential is more negative i.e. it is easily oxidized. But the position of copper is below H2 and the deposition ... in water to H2 gas. But magnesium degrades H + ions. So only magnesium reacts with hot water.

Ammonium sulphate can be produced by reacting gypsum with (A) Ammonia (B) Ammonium carbonate (C) Nitric acid (D) None of these

Description : Ammonium sulphate can be produced by reacting gypsum with (A) Ammonia (B) Ammonium carbonate (C) Nitric acid (D) None of these

Last Answer : (B) Ammonium carbonate

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Description : Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Last Answer : (B) Sulphuric acid

Which one of the following metals is immune to corrosion by air, water, hydrochloric acid and nitric acid; but is soluble in aqua regia? w) gold x) silver y) magnesium z) nickel

Description : Which one of the following metals is immune to corrosion by air, water, hydrochloric acid and nitric acid; but is soluble in aqua regia? w) gold x) silver y) magnesium z) nickel

Last Answer : ANSWER: W -- GOLD

Thyroperoxidase enzyme contains (A) Heme (B) Copper (C) Zinc (D) Magnesium

Description : Thyroperoxidase enzyme contains (A) Heme (B) Copper (C) Zinc (D) Magnesium

Last Answer : Answer : A

Haemoglobin formation needs both (A) Iron and Zinc (B) Iron and Calcium (C) Iron and Copper (D) Iron and Magnesium

Description : Haemoglobin formation needs both (A) Iron and Zinc (B) Iron and Calcium (C) Iron and Copper (D) Iron and Magnesium

Last Answer : Answer : C

Mitochondrial superoxide dismutase contains (A) Zinc (B) Copper (C) Magnesium (D) Manganese

Description : Mitochondrial superoxide dismutase contains (A) Zinc (B) Copper (C) Magnesium (D) Manganese

Last Answer : Answer : D

Alcohol dehydrogenase from liver contains (A) Sodium (B) Copper (C) Zinc (D) Magnesium

Description : Alcohol dehydrogenase from liver contains (A) Sodium (B) Copper (C) Zinc (D) Magnesium

Last Answer : Answer : C

A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride

Description : A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride

Last Answer : Answer : A

Which one of the following mineral elements play an important role in biological nitrogen fixation a. Copper b. Magnesium c. Zinc d. Molybdenum

Description : Which one of the following mineral elements play an important role in biological nitrogen fixation a. Copper b. Magnesium c. Zinc d. Molybdenum

Last Answer : Ans: D

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.

Which one of the following metals does not form amalgam? (1) Zinc (2) Copper (3) Magnesium (4) Iron

Description : Which one of the following metals does not form amalgam? (1) Zinc (2) Copper (3) Magnesium (4) Iron

Last Answer : (4) Iron Explanation: The definition of an amalgam is a mixture of metals and mercury, which can be man-made or can be naturally occurring.

Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc

Description : Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc

Last Answer : (D) Copper & zinc

Anodic material used for the cathodic protection of underground buried steel pipeline is (A) Nickel or copper (B) Zinc or magnesium (C) Bronze (D) Brass

Description : Anodic material used for the cathodic protection of underground buried steel pipeline is (A) Nickel or copper (B) Zinc or magnesium (C) Bronze (D) Brass

Last Answer : (B) Zinc or magnesium

Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.

Description : Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.

Last Answer : (c) phosphorus, potassium, sulphur, calcium

In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Last Answer : (d) Iron, copper, molybdenum

Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc

Description : Which of the following is the only element which i "mined" from the sea? Is it: w) copper x) magnesium y) uranium z) zinc

Last Answer : ANSWER: X -- MAGNESIUM 

The metal present in insulin is (1) Copper (2) Iron (3) Zinc (4) Magnesium

Description : The metal present in insulin is (1) Copper (2) Iron (3) Zinc (4) Magnesium

Last Answer : Zinc

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : Calcium and Magnesium

Is magnesium sulphate with water physical or chemical process?

Description : Is magnesium sulphate with water physical or chemical process?

Last Answer : Need answer

What are the chemical signals of magnesium sulphate ?

Last Answer : : Chemical signal of magnesium sulphate MgSO4

The reaction of zinc with dilute and concentrated nitric acid, respectively, produce

Description : The reaction of zinc with dilute and concentrated nitric acid, respectively, produce

Last Answer : The reaction of zinc with dilute and concentrated nitric acid, respectively, produce A. `NO_(2) and NO` B. `NO and ... N_(2)O` D. `N_(2)O and NO_(2)`

The reaction of zinc with dilute and concentrated nitric acid, respectively, produce

Description : The reaction of zinc with dilute and concentrated nitric acid, respectively, produce

Last Answer : The reaction of zinc with dilute and concentrated nitric acid, respectively, produce A. `NO_(2) and NO` B. `NO and ... N_(2)O` D. `N_(2)O and NO_(2)`

What are the chemical signals of Zinc Sulphate ?

Description : What are the chemical signals of Zinc Sulphate ?

Last Answer : : Chemical signal of zinc sulphate ZnSO4

What are the chemical signals of Zinc Sulphate ?

Last Answer : : Chemical signal of zinc sulphate ZnSO4

Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Description : Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Last Answer : (A) Sodium sulphite and sodium bisulphite

Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y (a). X- Sulphuric acid and Y- Oxygen gas (b). X- Hydrochloric acid and Y- Oxygen gas (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Description : Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and ... (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Last Answer : (c). X- Sulphuric acid and Y- Hydrogen gas

Out of the following, copper vessels are the most suitable for the storage of (A) Bromine (B) Dry chlorine & dry fluorine (C) Nitric acid (95% and fuming) (D) Phosphoric acid (95%) & sulphuric acid (95% and fuming)

Description : Out of the following, copper vessels are the most suitable for the storage of (A) Bromine (B) Dry chlorine & dry fluorine (C) Nitric acid (95% and fuming) (D) Phosphoric acid (95%) & sulphuric acid (95% and fuming)

Last Answer : (B) Dry chlorine & dry fluorine

Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of (A) Aluminium (B) Stainless steel (C) High silicon (14%) iron (D) Copper

Description : Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of (A) Aluminium (B) Stainless steel (C) High silicon (14%) iron (D) Copper

Last Answer : (B) Stainless steel

What are the chemical signals of copper sulphate ?

Description : What are the chemical signals of copper sulphate ?

Last Answer : : Chemical signal of copper sulphate CuSO4

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

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

For controlling algae, the most commonly used chemical, is (A) Copper sulphate (B) Alum (C) Lime (D) Bleaching powder

Description : For controlling algae, the most commonly used chemical, is  (A) Copper sulphate  (B) Alum  (C) Lime  (D) Bleaching powder 

Last Answer : (A) Copper sulphate 

Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Description : Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Last Answer : This is the Answer.

Can simple distillation be done to separate water from aqueous magnesium sulphate?

Description : Can simple distillation be done to separate water from aqueous magnesium sulphate?

Last Answer : Yes.Because simple distillation is a separating of a mixturethrough heating.it is only applied to separate volatile liquid fromthe nonvolatile ones.The gas created by the distillation iscollected through condensation to form a liquid again.Thank you'_'

Hardness of the water is commonly measured in terms of - (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents

Description : Hardness of the water is commonly measured in terms of - (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents

Last Answer : (1) Calcium carbonate equivalents

What is the most common salt in sea water? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

Description : What is the most common salt in sea water? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

Last Answer : (3) Sodium chloride Explanation: Sodium chloride, also known as salt, common salt, table salt or halite, is an ionic compound with the formula NaCl, representing equal proportions of sodium and ... for the salinity of the ocean and of the extracellular fluid of many multi-cellular organisms.

Which of the following is responsible for permanent hardness of water? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

Description : Which of the following is responsible for permanent hardness of water? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

Last Answer : (3) calcium sulphate Explanation: Permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling). Hard water contains dissolved magnesium and calcium ions. These make ... . Temporary hardness is caused by dissolved calcium hydrogen carbonate (which is removed by boiling)

Which of the following is not produced on commercial scale from sea water? (A) Bromine (B) Magnesium compounds (C) Potassium compounds (D) Sodium sulphate

Description : Which of the following is not produced on commercial scale from sea water? (A) Bromine (B) Magnesium compounds (C) Potassium compounds (D) Sodium sulphate

Last Answer : (D) Sodium sulphate