‘Kelp’ is (1) Sulphide mineral of iron (2) Partially decomposed vegetation (3) Sea weed rich in iodine content (4) An aluminium silicate mineral

‘Kelp’ is (1) Sulphide mineral of iron (2) Partially decomposed vegetation (3) Sea weed rich in iodine content (4) An aluminium silicate mineral
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Sea weed rich in iodine content
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Kelp is - (1) Sulphide mineral of iron (2) Partially decomposed vegetalion (3) Sea weed rich in iodine content (4) An aluminium silicate mineral

Description : Kelp is - (1) Sulphide mineral of iron (2) Partially decomposed vegetalion (3) Sea weed rich in iodine content (4) An aluminium silicate mineral

Last Answer : (3) Sea weed rich in iodine content Explanation: Kelps are large seaweeds (algae) belonging to the brown algae in the order Laminariales. Because of its high concentration of iodine, kelp has been used to treat goiter, an enlargement of the thyroid gland caused by a lack of iodine.

The fire clay contains pure (A) Lime (B) Oxide of iron (C) Hydrated aluminium silicate (D) Magnesium

Description : The fire clay contains pure (A) Lime (B) Oxide of iron (C) Hydrated aluminium silicate (D) Magnesium

Last Answer : Answer: Option C

Fusion point of coal ash increases with increase in its __________ content. (A) Iron sulphate (B) Iron silicate (C) Lime and magnesia (D) All (A), (B) and (C)

Description : Fusion point of coal ash increases with increase in its __________ content. (A) Iron sulphate (B) Iron silicate (C) Lime and magnesia (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which mineral is essential part of hemoglobin a. Iron b. Iodine c. sodium d. magnesium

Description : Which mineral is essential part of hemoglobin a. Iron b. Iodine c. sodium d. magnesium

Last Answer : Iron

The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given below: The oxidizing and reducing agents involved in this redox reaction are: (a) Iodine and sulphur respectively (b) Iodine and hydrogen sulphide respectively (c) Sulphur and iodine respectively (d) Hydrogen sulphide and sulphur

Description : The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given below: The oxidizing and reducing agents involved in this redox reaction are: (a) ... and hydrogen sulphide respectively (c) Sulphur and iodine respectively (d) Hydrogen sulphide and sulphur

Last Answer : (b) Iodine and hydrogen sulphide respectively

Bitter gourd is rich source of? a Iron b Pottasium c Dietary fibre d Iodine

Description : Bitter gourd is rich source of? a Iron b Pottasium c Dietary fibre d Iodine

Last Answer : a Iron

When the mineral rich water from hydro thermal vent hits the surrounding sea water the minerals rushing out give the water appearance of?

Description : When the mineral rich water from hydro thermal vent hits the surrounding sea water the minerals rushing out give the water appearance of?

Last Answer : What is the answer ?

Well decomposed FYM contains N, P and K content

Description : Well decomposed FYM contains N, P and K content

Last Answer : Ans. 0.5:0.2:0.5%

Softening of hard water is done using sodium aluminium silicate (zeolite) . This causes

Description : Softening of hard water is done using sodium aluminium silicate (zeolite) . This causes

Last Answer : Softening of hard water is done using sodium aluminium silicate (zeolite) . This causes A. adsorption of `Ca^(2 ... both (A) and (B) D. none of these

Naturally occurring aluminium silicate is?

Description : Naturally occurring aluminium silicate is?

Last Answer : Mica

Crucible is repaired by? (i) Magnasite Powder (ii) Magnasite Powder & Sodium Silicate.* (iii) Sodium Silicate (iv) Aluminium powder

Description : Crucible is repaired by? (i) Magnasite Powder (ii) Magnasite Powder & Sodium Silicate.* (iii) Sodium Silicate (iv) Aluminium powder

Last Answer : (ii) Magnasite Powder & Sodium Silicate.*

Micanite is a form of (A) Built up mica. (B) Hydrated potassium aluminium silicate. (C) Magnesium mica. (D) Calcium mica.

Description : Micanite is a form of (A) Built up mica. (B) Hydrated potassium aluminium silicate. (C) Magnesium mica. (D) Calcium mica.

Last Answer : (A) Built up mica.

Brass gets discoloured in air due to constant exposure in presence of: (1) Aluminium phosphide (2) Hydrogen sulphide (3) Hydrogenated wafers (4) Aluminium sulphide

Description : Brass gets discoloured in air due to constant exposure in presence of: (1) Aluminium phosphide (2) Hydrogen sulphide (3) Hydrogenated wafers (4) Aluminium sulphide

Last Answer : (2) Hydrogen sulphide Explanation: Brass gets discoloured in air because of Hydrogen sulphide. Transition elements are coloured. The brass is combination of Zn and Cu. But it is discoloured due to hydrogen sulphide in air.

Brass gets discoloured in air due to constant exposure in presence of: (1) Aluminium phosphide (2) Hydrogen sulphide (3) Hydrogenated wafers (4) Aluminium sulphide

Description : Brass gets discoloured in air due to constant exposure in presence of: (1) Aluminium phosphide (2) Hydrogen sulphide (3) Hydrogenated wafers (4) Aluminium sulphide

Last Answer : Hydrogen sulphide

Apple is a rich source of mineral: a. Carbohydrates b. Proteins c. Vita-A d. Iron

Description : Apple is a rich source of mineral: a. Carbohydrates b. Proteins c. Vita-A d. Iron

Last Answer : Iron

Is not a major component of magma A. partially melted mineral crystals B. water C. dissolved gases D. lava?

Description : Is not a major component of magma A. partially melted mineral crystals B. water C. dissolved gases D. lava?

Last Answer : Water is not a major component of melted rock. The heat hasturned any water into steam.

Sea weeds are important source of – (1) iron (2) chlorine (3) bromine (4) iodine

Description : Sea weeds are important source of – (1) iron (2) chlorine (3) bromine (4) iodine

Last Answer : (4) iodine Explanation: Seaweed is a source of iodine, necessaly for thyroid function and to prevent goitre. However, an excess of iodine is suspected in the heightened cancer risk in Japanese who consume a lot of the plant, and even bigger risks in post-mempausal women.

Sea weeds are important source of (1) iron (2) chlorine (3) bromine (4) iodine

Description : Sea weeds are important source of (1) iron (2) chlorine (3) bromine (4) iodine

Last Answer : iodine

Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide

Description : Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide

Last Answer : (D) Carbon monoxide

Is kelp eukaryotic?

Description : Is kelp eukaryotic?

Last Answer : Need answer

Which of these energy transformations is taking place in the kelp as it carries out photosynthesis?

Description : Which of these energy transformations is taking place in the kelp as it carries out photosynthesis?

Last Answer : Solar energy - chemical energy -apex (:

What is gaint kelp domain?

Description : What is gaint kelp domain?

Last Answer : Eukaryote

Which of the following is a parasitic plant? (a) Marchantia (b) Kelp (c) Mushroom (d) Pteris

Description : Which of the following is a parasitic plant? (a) Marchantia (b) Kelp (c) Mushroom (d) Pteris

Last Answer : Ans:(c)

Which of the following is the parasitic plant? (1) Marchantia (2) Kelp (3) Mushroom (4) Pteris

Description : Which of the following is the parasitic plant? (1) Marchantia (2) Kelp (3) Mushroom (4) Pteris

Last Answer : (3) Mushroom Explanation: A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant.

Nikhil and Neha went to a remote village in Kerala to meet their grandmother. They were surprised to see a biogas plant in Mr. Nair’s house in the neighbourhood. There were plenty of livestocks and the household used cooking gas from the plant. Also their farms had rich vegetation. They contacted sarpanch of the village and convinced him to set up a biogas plant for village community. (a) Mention the values displayed by Mr. Nair, Nikhil and Neha. (b) Explain the possible arguments given by Nikhil and Neha to the sarpanch to convince him to set up community biogas plant. -Science

Description : Nikhil and Neha went to a remote village in Kerala to meet their grandmother. They were surprised to see a biogas plant in Mr. Nair's house in the neighbourhood. There were plenty of livestocks ... given by Nikhil and Neha to the sarpanch to convince him to set up community biogas plant. -Science

Last Answer : (a) Mr Nair: Higher degree of general awareness, helping nature. Nikhil and Neha: Knowledge sharing. helping nature. concern for community advantage. (b) Possible arguments given by Nikhil ... . Basically they discuss and explain the advantages of community bio gas plant for the'entire village.

The total amount of iodine in the body of an average adult is (A) 10–15 mg (B) 20–25 mg (C) 45–50 mg (D) 75–100 mg MINERAL METABOLISM 199

Description : The total amount of iodine in the body of an average adult is (A) 10–15 mg (B) 20–25 mg (C) 45–50 mg (D) 75–100 mg MINERAL METABOLISM 199

Last Answer : Answer : C

Which mineral is an essential part of thyroxin a. Fe b. Mg c. Iodine d. Na

Description : Which mineral is an essential part of thyroxin a. Fe b. Mg c. Iodine d. Na

Last Answer : Iodine

One of the following mineral is essential for life of animals and rot for plants (a) Calcium (b) Phosphorus (c) Iodine (d) Potassium

Description : One of the following mineral is essential for life of animals and rot for plants (a) Calcium (b) Phosphorus (c) Iodine (d) Potassium

Last Answer : (b) Phosphorus

Name ten high iodine rich foods. ?

Description : Name ten high iodine rich foods. ?

Last Answer : 1. Iodized salt. 2. Small fish. 3. Egg yolk. 4. Pulses. 5. All kinds of vegetables. . A variety of fruits. . Meat. . Soybeans. 9. Milk. 10. Dairy food.

Which aquatic fish is rich in iodine ?

Last Answer : Sea fish are high in iodine

If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is (A) 40 % (B) 60 % (C) 80 % (D) 100 %

Description : If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is (A) 40 % (B) 60 % (C) 80 % (D) 100 %

Last Answer : (A) 40 %

A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation is (A) 20 % (B) 77 % (C) 92 % (D) None of these

Description : A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation is (A) 20 % (B) 77 % (C) 92 % (D) None of these

Last Answer : Answer: Option C

Slag is a name given for - (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Description : Slag is a name given for - (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Last Answer : (3) molten alumina Explanation: Slag is a partially vitreous byproduct of the process of smelting ore, which separates the desired metal fraction from the unwanted fraction. A good example is steelmaking ... separated from the metal, and assist in the removal of sulfur and phosphorus from the steel.

furnace slag is mainly molten (A) Sand (B) Magnesium silicate (C) Calcium silicate (D) Iron pyrite

Description : furnace slag is mainly molten (A) Sand (B) Magnesium silicate (C) Calcium silicate (D) Iron pyrite

Last Answer : Option C

Which of the following is the primary reason for adding calcium carbonate to the reduction process of iron oxide ores ? The calcium carbonate: w) acts as an oxidizing agent x) removes silicate waste products y) acts as a reducing agent z) removes sulfur waste products

Description : Which of the following is the primary reason for adding calcium carbonate to the reduction process of iron oxide ores ? The calcium carbonate: w) acts as an oxidizing agent x) removes silicate waste products y) acts as a reducing agent z) removes sulfur waste products

Last Answer : ANSWER: X -- REMOVES SILICATE WASTE PRODUCTS

Slag is a name given for (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Description : Slag is a name given for (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Last Answer : molten alumina

Which one of the following is the characteristic vegetation of regions between the snow line and about 3000 meters above mean sea level of the Himalayan region? [CDS 2000] (a) Thick forests of birch, fir, spruce and other trees (b) Forests of oak, deodar, chestnut and maple trees (c) A few dwarf shrubs (d) Forests of khair, sandalwood, palas and other trees

Description : Which one of the following is the characteristic vegetation of regions between the snow line and about 3000 meters above mean sea level of the Himalayan region? [CDS 2000] (a) Thick forests of birch, fir, ... maple trees (c) A few dwarf shrubs (d) Forests of khair, sandalwood, palas and other trees

Last Answer : Ans: (b)

Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .

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.

Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is..

Description : Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is..

Last Answer : Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The ... acid is.. A. 2 B. 3 C. 1 D. Zero

The sewer which resists sulphide corrosion, is A. Brick sewer B. Cast iron sewer C. R.C.C. sewer D. Lead sewer

Description : The sewer which resists sulphide corrosion, is A. Brick sewer B. Cast iron sewer C. R.C.C. sewer D. Lead sewer

Last Answer : ANS: D

Froth floatation is the most suitable for treating (A) Iron ores (B) Sulphide ores (C) Quartzite (D) None of these

Description : Froth floatation is the most suitable for treating (A) Iron ores (B) Sulphide ores (C) Quartzite (D) None of these

Last Answer : (B) Sulphide ores

Iron rust is (A) Ferrous oxide (B) Hydrated ferric oxide (C) Powdered iron (D) Ferric sulphide

Description : Iron rust is (A) Ferrous oxide (B) Hydrated ferric oxide (C) Powdered iron (D) Ferric sulphide

Last Answer : (B) Hydrated ferric oxide

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

Name the mineral used in the manufacture of: (i) Cement (ii) Aluminium -Geography

Description : Name the mineral used in the manufacture of: (i) Cement (ii) Aluminium -Geography

Last Answer : Mineral used in the manufacturing of : (1) Cement—Limestone. (2) Aluminium—Bauxite (3) Synthetics—Petroleum

Name the mineral: (i) which is converted to aluminium. -Geography

Description : Name the mineral: (i) which is converted to aluminium. -Geography

Last Answer : (a) (i) Orrisa and Karnataka. (ii) Manganese is used for making steel and glass. (b) (i) Haematite and Magnetite (ii) Low grade iron ore is used in mini steel plants. (c) (i) Anthracite ... heavy and bulky also which is difficult to transport. (d) (i) Bauxite (ii) Limestone (iii) Manganese.

Name the mineral ore from which aluminium is extracted? -SST 10th

Description : Name the mineral ore from which aluminium is extracted? -SST 10th

Last Answer : (i) Bauxite. (ii) Aluminium is gaining importance because of its extreme lightness, good conductivity and great malleability. It combines the strength of metals such as Iron. (iii) ... large deposits. Odisha is the largest bauxite producing state. Others are Gujarat, Maharashtra and Jharkhand.

Which is not a mineral of aluminium

Description : Which is not a mineral of aluminium

Last Answer : Which is not a mineral of aluminium A. Anhydrite B. Bauxite C. Crorundum D. Diaspore

Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Description : Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Last Answer : (2) Bauxite Explanation: Bauxite is an aluminium ore and is the main source of aluminium. Approximately 70% to 80% of the world's dry bauxite production is processed first into alumina, and then into aluminium by electrolysis.

Which is the black impure aluminium oxide mineral found in nature?

Description : Which is the black impure aluminium oxide mineral found in nature?

Last Answer : Emery

What is the blue mineral of aluminium?

Description : What is the blue mineral of aluminium?

Last Answer : Lapislazuli