Description : The rocks in which argil (or clay) predominates, are called (A) Siliceous rocks (B) Argillaceous rocks (C) Calcareous rocks (D) Igneous rocks
Last Answer : Answer: Option B
Description : Chemically, marble is known as (A) Metamorphic rock (B) Argillaceous rock (C) Calcareous rock (D) Siliceous rock
Last Answer : Answer: Option C
Description : Laterite is a/an (A) Volcanic rock (B) Argillaceous rock (C) Calcareous rock (D) Siliceous rock
Description : Kaolin is chemically classified as (A) Metamorphic rock (B) Argillaceous rock (C) Calcareous rock (D) Siliceous rock
Description : Quartzite is a (A) Metamorphic rock (B) Argillaceous rock (C) Calcareous rock (D) Siliceous rock
Last Answer : Answer: Option D
Description : Cement used for normal concrete construction, is obtained by burning a mixture of (A) Siliceous and argillaceous materials (B) Argillaceous and calcareous materials (C) Siliceous and calcareous materials (D) Siliceous, argillaceous and calcareous materials
Description : The rocks having alumina or clay as their major constituents are known as (A) Siliceous rocks (B) Argillaceous rocks (C) Calcareous rocks (D) Sedimentary rocks
Description : Cement is obtained by burning a mixture of the following materials [ A ] Siliceous materials [ B ] Argillaceous materials [ C ] Calcareous materials [ D ] All the above
Last Answer : [ D ] All the above
Description : Pick up the correct statement from the following: (A) Sand stones may be divided into calcareous, siliceous and ferruginous sand stones (B) Concrete using sand stones, cracks due to excessive shrinkage (C) Broken bricks produce a concrete having good fire resisting qualities (D) All the above
Description : In the manufacture of cement, the dry of wet mixtue of calcareous and argillaceous materials is burnt in a (a) A Rotary kiln (b) A Grinder (c) Country kiln (d) All the above
Last Answer : (a) A Rotary kiln
Description : Calcareous and argillaceous materials used in manufacture of cement consists of (a) Lime stone (b) Chalk (c) Shales (d) All the above
Last Answer : (d) All the above
Description : Calcareous & argillaceous materials are used in the manufacture of (A) Lead (B) Cement (C) Carbon disulphide (D) None of these
Last Answer : (B) Cement
Description : Sandstone is a (i) Sedimentary rock (ii) Aqueous rock (iii) Siliceous rock The correct answer is (A) Only (i) (B) Both (i) and (ii) (C) Both (i) and (iii) (D) All (i), (ii) and (iii)
Description : The rock which is not calcareous, is: (A) Lime stone (B) Chalk (C) Laterite (D) None of these
Last Answer : (D) None of these
Description : Pick up the correct statement from the following: (A) Lime is available in Free State (B) Lime is available by dissolving calcium carbonate in water (C) Lime is available by calcining calcium carbonate at 900°C (D) Lime is nothing but calcium chloride
Description : Concrete containing (A) Siliceous aggregates, has higher co-efficient of expansion (B) Igneous aggregates, has intermediate coefficient of expansion (C) Lime stones, has lowest co-efficient of expansion (D) All the above
Description : Concrete contains (i)Siliceous aggregates, having higher coefficient of expansion (ii)Igneous aggregates, having intermediate coefficient of expansion (iii)Lime stones, having lowest coefficient of expansion [ A ] i and iii [ B ] ii and iii [ C ] i and ii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
Description : Regarding retinal metabolism: a. insulin is essential for the uptake of glucose by the retina b. anaerobic metabolism predominates c. the pigment retinal epithelium stores glycogen and supplies the need of the retina d. the demand of oxygen is met entirely by the central retinal artery
Last Answer : anaerobic metabolism predominates
Description : Flat planting predominates where a) Nature moisture content is favourable b) Rainfall is high to provide surface drainage c) Semi arid areas to conserve moisture d) None of the above
Last Answer : a) Nature moisture content is favourable
Description : If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above
Description : If the iron ore contains clay as an impurity, the flux added during calcination, is (A) Clay (B) Lime stone (C) Argillaceous iron ore (D) All the above
Description : Permanent hardness of water is due to the presence of calcium & magnesium (A) Bi-carbonates (B) Sulphates & chlorides (C) Carbonate (D) None of these
Last Answer : (B) Sulphates & chlorides
Description : Alkalinity in water may be caused due to (A) Calcium and magnesium bicarbonates (B) Sodium carbonate (C) Potassium carbonate (D) All the above
Last Answer : (D) All the above
Description : Pick up the correct statement from the following: (A) Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe (B) Incrustation of the pipe reduces the discharge (C) Acidic waters cause corrosion of the pipes (D) All the above
Description : Quick lime is (A) Calcium carbonate (B) Calcium oxide (C) Calcium hydroxide (D) None of the above
Description : The most common admixture which is used to accelerate the initial set of concrete is (A) Gypsum (B) Calcium chloride (C) Calcium carbonate (D) None of the above
Description : The most commonly used retarder in cement is (A) Gypsum (B) Calcium chloride (C) Calcium carbonate (D) None of the above
Last Answer : Answer: Option A
Description : In order of increasing percentage of silica, the correct sequence is (A) Sandy clay, calcareous clay, pure clay (B) Calcareous clay, pure clay, sandy clay (C) Pure clay, sandy clay, calcareous clay (D) None of these
Description : Stages of Bead Making: To know the sources of siliceous stones and chank shells
Last Answer : Write correct chronological order: Stages of Bead Making: (a) To know the sources of siliceous ... site (d) To obtain the raw material
Description : Most suitable rocks for construction of tunneling: (A) Argillaceous S.st (B) Vesicular or amygdaloidal basalts (C) Limestone (D) Schist & Phyllite
Last Answer : (B) Vesicular or amygdaloidal basalts
Description : The majority of Earth's crust is composed of which rock? (1) Igneous (2) Metamorphic (3) Sedimentary (4) Carbonate
Last Answer : (1) Igneous Explanation: The Earth is composed predominantly of a large mass of igneous rock with a very thin veneer of weathered material— namely, sedimentary rock. Physical Geography (Set: 07)
Description : The majority of Earth’s crust is composed of which rock ? (1) Igneous (2)Metamorphic (3) Sedimentary (4)Carbonate
Last Answer : Igneous
Description : Calculate the mass of 6.022 × 1023 molecule of Calcium carbonate (CaCO3) -Chemistry 9th
Last Answer : Molar mass (Molecular mass in gram) of CaCO3 = 40+12+3×16 = 100 g No. of moles of CaCO3 = No. of molecules/Avogadro constant = 6.022 × 1023/ 6.022 × 1023 = 1 mole Mass of CaCO3 = No. of moles × molar mass = 1 × 100 g = 100 g
Description : What are the chemical signals of calcium carbonate (limestone) ?
Last Answer : Chemical symbol of calcium carbonate (limestone) CaCO3
Description : What are the chemical signals of calcium carbonate ?
Last Answer : Chemical signals of calcium carbonate - CaCO 3
Description : How much CO2 is formed by the reaction of 120g of phosphoric acid with limescale (calcium carbonate)? temperature 16 degrees pressure 98kPa
Last Answer : Need Answer
Description : The total number of protons in 10 g of calcium carbonate is `(N_(0) = 6.023 xx 10^(23))` :-
Last Answer : The total number of protons in 10 g of calcium carbonate is `(N_(0) = 6.023 xx 10^(23))` :- A. `1.5057 ... 3.0115 xx 10^(24)` D. `4.0956 xx 10^(24)`
Description : What is the formula when calcium carbonate breaks down into carbon dioxide oxygen and calcium?
Last Answer : Need answer
Description : In terms of particles how and why the rate of reaction changes during the reaction of calcium carbonate with hydrochloric acid.?
Last Answer : The chemical reaction goes faster if calcium carbonate is powdered.
Description : What materials are mainly in calcium carbonate?
Description : Why sulphuric acid is not used in preparation of carbon dioxide from calcium carbonate?
Last Answer : The formed calcium sulfate obtained as a product cover calciumcarbonate and stop the reaction.
Description : How method of separating water and calcium carbonate?
Last Answer : Evaporate the water from the solution.
Description : What Mass Of Calcium Carbonate Is Needed For Complete Reaction With The HCl In 2HCl(aq) plus CaCO 3 (s) CaCl 2 (aq) plus H 2 O(l) plus CO 2 (g)?
Description : What is reaction of calcium nitrate and potassium carbonate?
Last Answer : The chemical reaction is:Ca(NO3)2 + K2CO3 = CaCO3(s) + 2 KNO3
Description : Calcium carbonate overdose?
Last Answer : DefinitionCalcium carbonate is an ingredient that is commonly found in antacids (for heartburn) and some dietary supplements. Calcium carbonate overdoseoccurs when someone accidentally ... calcium carbonate, includingCertain antacids (Tums, Chooz)Certain mineral supplementsCertain hand lotionsCer
Description : Calcium carbonate decomposes into calcium oxide & carbon dioxide Her results:Mass of calcium carbonate before heating = 2.00 g Mass of calcium oxide left after heating = 1.12 g work out the mass of carbon dioxide released during the decomposition?
Last Answer : I am not sure of the answer so can someone help me pls
Description : How many moles of carbon are in 3.5 moles of calcium carbonate?
Last Answer : The number of moles of calcium carbonate are 3.5 moles. , there are 1 mole of calcium (Ca) atom, 1 mole of carbon (C) atom and 3 moles of oxygen (O) atoms.
Description : Match the following : A. Chernozems 1. Rich in calcium carbonate B. Black soil 2. Contains aluminium compound C. Laterite 3. Richest soils in the world D. Terra Rosa 4. Formed in limestone E. Alluvial soil 5. It is a mixture of clay, sand and ... 1 2 3 4 5 (b) 3 1 2 4 5 (c) 4 5 3 1 2 (d) 3 4 5 2 1
Last Answer : Ans: (b)
Description : The physiologically active form of calcium is (A) Protein bond (B) Ionised (C) Complexed with citrate (D) Complexed with carbonate
Last Answer : Answer : B
Description : The major calcium salt in bones is (A) Calcium carbonate (B) Calcium chloride (C) Calcium hydroxide (D) Calcium phosphate
Last Answer : Answer : D