Description : Iron rust is (A) Ferrous oxide (B) Hydrated ferric oxide (C) Powdered iron (D) Ferric sulphide
Last Answer : (B) Hydrated ferric oxide
Description : Pick up the correct statement from the following: (A) Rusting is caused due to combined action of air, moisture and carbon dioxide (B) During rusting, first ferrous bicarbonates are formed (C) On further oxidation ferrous bicarbonates get converted to ferric bicarbonates (D) All the above
Last Answer : Answer: Option D
Description : Oxygen is utilised by the organism to (a)_____ breakdown nutrietns molecules the (b)_____ and to derive (c)______ for performing various activities
Last Answer : Oxygen is utilised by the organism to (a)_____ breakdown nutrietns molecules the (b)_____ and to derive (c)______ for performing various activities
Description : What is the state of iron in transferrin? (A) Ferrous form (B) Ferric form (C) Both A and B (D) None of these
Last Answer : Answer : B
Description : In which of the following forms is iron absorbed by plants? (a) Ferric (b) Ferrous (c) Free element (d) Both ferric and ferrous
Last Answer : a) Ferric
Description : Ethers can be freed from peroxides by treatment with (a) Ferrous salt (b) Sodium carbonate (c) Ferric salt (d) Sodium bicarbonate
Last Answer : Ferric salt
Description : Alum is chemically (A) Copper sulphate (B) Aluminium sulphate (C) Ferrous sulphate (D) Ferric sulphate
Last Answer : (B) Aluminium sulphate
Description : Choose the correct statement about severity of side effects to oral iron medication: A. Ferrous salts are better tolerated than ferric salts B. Complex organic salts of iron are better ... better tolerated than tablets D. Tolerability depends on the quantity of elemental iron in the medication
Last Answer : D. Tolerability depends on the quantity of elemental iron in the medication
Description : In which of the following forms is iron absorbed by plants ? (1) Ferric (2) Ferrous (3) Free element (4) Both ferric and ferrous
Last Answer : (1) Ferric
Description : What is observed (i) When a beam of light is pressed through a colloidal sol (ii) An electrolyte, NaCl is added to hydrated ferric oxide sol. (iii) Electric current is passed through colloidal sol.
Last Answer : Ans.: (i) Tyndal Effect (iv) Coagulation (v) Electrophoresis
Description : In mitochondrial matrix complete oxidation of pyruvate takes place in which all the hydrogen atoms are removed, leaving three molecules of `CO_(2)`
Last Answer : In mitochondrial matrix complete oxidation of pyruvate takes place in which all the hydrogen atoms are removed, leaving three molecules of `CO_(2)`
Description : Name the material which is separated from molten steel during chemical reaction of A.T welding? (i) Aluminium oxide (slag). * (ii) Ferrous Oxide (iii) Aluminium (iv) Ferrous
Last Answer : (i) Aluminium oxide (slag). *
Description : Asserton :- The formal oxidation no. of sulphur in `Na_(2)S_(4)O_(6)` is `2.5` Reason :- Two S-atoms are not directly linked with O-atoms.
Last Answer : Asserton :- The formal oxidation no. of sulphur in `Na_(2)S_(4)O_(6)` is `2.5` Reason :- ... Reason is False. D. If both Assertion & Reason are False.
Description : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..
Last Answer : The difference in the oxidation numbers of two types of sulphul atoms in `Na_(2)S_(4)O_(6)` is…..
Description : The correct set of oxidation numbers of sulphur atoms in `H_(2)S_(2)O_(3)` is/are:
Last Answer : The correct set of oxidation numbers of sulphur atoms in `H_(2)S_(2)O_(3)` is/are: A. `+6,-2` B. `+4,-2` C. `+2,+4` D. `+5,-1`
Description : In respiration, energy of oxidation reduction is utilised for the production of proton gradient required for phosphorylation.
Last Answer : In respiration, energy of oxidation reduction is utilised for the production of proton gradient required for phosphorylation.
Description : Can I mix granulated ferric oxide with granulated carbon in a media bag? Or does it have to be separate?
Last Answer : It’s the same water that goes through them whether they are separate or not. I had my marine tank in the dark ages, so I am no longer an expert, but it seems to me that carbon is non-reactive, and gfo is already oxidized; I don’t see what difference it can make.
Last Answer : : Fe2O3.nH2O signal of wet ferric oxide
Description : Which of the following anions will have minimum flocculation value for the ferric oxide solution?
Last Answer : Which of the following anions will have minimum flocculation value for the ferric oxide solution? A. `Cl^(-)` B. `Br^( ... 2-)` D. `[Fe(CN)_(6)]^(3-)`
Description : Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable ... OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3
Last Answer : Ans: (b)
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 : The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is (A) 20 (B) 15 (C) 5 (D) 0
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 : Ozone reacts with dry iodine to form an oxide having ____oxygen atoms in its molecules.
Last Answer : Ozone reacts with dry iodine to form an oxide having ____oxygen atoms in its molecules.
Description : The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely
Last Answer : The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely A. `-2,-1,-(1)/(2)` B. `-( ... 1,-2,-(1)/(2)` D. `-2,-(1)/(2),-1`
Description : In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_(2)O_(7)` solution of molarity `M_(1)`
Last Answer : In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_ ... V_(2)` D. `M_(1)V_(1)=M_(2)V_(2)`
Description : What is the signal of ferrous oxide ?
Last Answer : The sign of ferrous oxide is FeO
Description : Which of the following imparts deep blue colour to glass? (1) Cobalt oxide (2) Cupric oxide (3) Ferrous oxide (4) Nickel oxide
Last Answer : (4) Nickel oxide Explanation: Glass colouring and colour marking may be obtained by addition of colouring ions, by precipitation of nanometer sized colloides (so-called striking glasses such as "ruby gold" or red "selenium ruby"), by coloured inclusions (as in milk glass and smoked glass).
Description : Ferrous oxide gives which colour to glass?
Last Answer : Olive green
Description : Oxide layer formed on the non-ferrous metal surface after its annealing is (A) Removed by acid pickling (B) Hammered into the surface (C) Removed with coarse emery cloth
Last Answer : Option A
Description : The main constituent of fly-ash, is (A) Aluminium oxide (B) Silica (C) Ferrous oxide (D) All of these
Description : The pigment used in paints for corrosive resistance, is (A) White lead (B) Ferrous oxide (C) Zinc white (D) Red lead
Description : Which of the following imparts deep blue colour to glass ? (1) Cobalt oxide (2) Cupric oxide (3) Ferrous oxide (4) Nickel oxide
Last Answer : Nickel oxide
Description : Match the conversions in Column I with the type(s) of reaction(s) given in Column II. `{:("Column I","ColumnII"),(A. "PbS"rarr"PbO",p. "Roasting"),(B.
Last Answer : Match the conversions in Column I with the type(s) of reaction(s) given in Column II. `{:("Column I","ColumnII"),(A. ... D. a-p, s: b-p,q : c-p: d-s
Description : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2)S_(2)O_(6)" "(II)H_(2)S_(2)O_(3)"
Last Answer : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2) ... I C. II, I, III D. I, III,II
Last Answer : Identify the correct sequence of increasing of `pi-` bonds in the structure of the following molecules `:` `(I)H_(2) ... i C. ii, I, iii D. I, iii, ii
Description : How many atoms of aluminum sulfur and oxygen are in 3 molecules of aluminum sulfate?
Last Answer : 1 formula unit of aluminum sulfate has the formula Al2(SO4)3. Sothere are 2 atoms of aluminum, 3 atoms of sulfur and 12 atoms ofoxygen in 1 formula unit of aluminum sulfate. There are nomolecules of aluminum sulfate. They are called formula units.
Description : Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons
Last Answer : ANSWER: Z -- HAS UNPAIRED ELECTRONS
Description : Schwann's cell theory basically states that: a) cells are the building blocks of living things. b) cells require oxygen. c) cells are made of atoms and molecules. d) cells require nutrients.
Last Answer : ANSWER: A -- CELLS ARE THE BUILDING BLOCKS OF LIVING THINGS.
Description : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.
Last Answer : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four ... Reason is False. D. If both Assertion & Reason are False.
Description : Ozone on reaction with one of the following reagents uses all its 3 oxygen atoms for oxidation
Last Answer : Ozone on reaction with one of the following reagents uses all its 3 oxygen atoms for oxidation A. `SO_(2)` B. ` ... of HCl C. `CH_(2)=CH_(2)` D. All
Description : All of the following are required for hydroxylation of proline residues except (A) Ascorbic acid (B) Glutamate (C) Ferrous ions (D) Molecular oxygen
Description : Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by (A) Biological oxygen pond (B) Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) (C) Lagoons (D) Filtration
Last Answer : (B) Radial settling tank (thickener) using coagulant (lime & ferrous sulphate)
Description : 1.5 mol of `O_(2)` combines with Mg to form oxide MgO. The mass of Mg (at. Mass 24) that has combined is
Last Answer : 1.5 mol of `O_(2)` combines with Mg to form oxide MgO. The mass of Mg (at. Mass 24) that has combined is A. 72 g B. 36 g C. 24 g D. 94 g
Description : The formation of the oxide `M_(x)O_(y)`per mole of `O_(2)` cinsumed is written a `(2x)/(y)M_((S))+O_(2(g))to(2)/(y)M_(x)O_(y)` the free energy change
Last Answer : The formation of the oxide `M_(x)O_(y)`per mole of `O_(2)` cinsumed is written ... from the following two reactions. Choose the correct statement
Description : Which of the following statement is incorrect ? a)Oxide of aluminium `(Al_(2)O_(3))` and arsenic `(As_(2)O_(3))` are amphoteric. b)Oxide of chlorine `
Last Answer : Which of the following statement is incorrect ? a)Oxide of aluminium `(Al_(2)O_(3))` and ... sulphides D. Malachite and azurite are ores of copper