Description : Which one of the following acids is used in battery? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid
Last Answer : (3) Sulphuric acid Explanation: Battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy. Possessing different chemical properties ... domestic acidic drain cleaner, electrolyte in lead-acid batteries and various cleaning agents.
Description : Sulphuric acid saturated with SO3 is called (A) Concentrated H2SO4 (B) Sulphurous acid (C) Oleum (D) None of these
Last Answer : (C) Oleum
Description : Sulphuric acid completely saturated with sulphur trioxide is called (A) Concentrated sulphuric acid (B) Oleum (C) Sulphurous acid (D) Dilute sulphuric acid
Last Answer : (A) Concentrated sulphuric acid
Description : Which one of the following acids is used in battery ? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid
Last Answer : Sulphuric acid
Description : Which of the following chemical reactions does not lead to formation of a salt? w) Reaction of salts with acids. x) The reaction of base anhydrides with acid anhydrides. y) Action of water on oxides of nonmetals. z) Reaction of acid with base.
Last Answer : ANSWER: Y -- ACTION OF WATER ON OXIDES OF NONMETALS. (If water reacts with oxides of nonmetals, an acid is formed.)
Description : Which of the following acid-derivatives are most stable? (a) Acid chlorides (b) Esters (c) Amides (d) Anhydrides
Last Answer : Amides
Description : Esters and amides are most easily made by nucleophilic acyl substitution reactions on : (a) acid anhydrides (b) carboxylates (c) carboxylic acids (d) acid chlorides
Last Answer : acid chlorides
Description : The term 'brown air' is used for – (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog
Last Answer : (2) Photochemical smog Explanation: Photochemical smog which is mainly composed of ozone (O3), Peroxyacetyl nitrate (PAN) and No., is also known as brown air where solar radiation is intense. In ... solar radiation or areas, smog formation is incomplete and the air is referred to as grey air.
Description : The term ‘brown air’ is used for (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog
Last Answer : Photochemical smog
Description : Both `[Ni(CO)_(4)] and [Ni(CN)_(4)]^(2-)` are diamagnetic. The hybridisation of nickel in these complexes, respectively are :
Last Answer : Both `[Ni(CO)_(4)] and [Ni(CN)_(4)]^(2-)` are diamagnetic. The hybridisation of nickel in these complexes, ... (2),sp^(3)` D. `dsp^(2),sp^(2)`
Description : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What order of oxidising ability of halo
Last Answer : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What ... gt l_(2) gt H_(2)SO_(4)`
Description : Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively (A) V2O5 & Cr2O3 . (B) Oxides of nitrogen & Cr2O3 (C) V2O5 on a porous carrier & oxides of nitrogen (D) Oxides of nitrogen & V2O5 on a porous carrier
Last Answer : (D) Oxides of nitrogen & V2O5 on a porous carrier
Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science
Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent
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
Description : Sulphurous smog is
Last Answer : Sulphurous smog is A. Photochemicals smog B. oxidising smog C. classical smog D. los angeles smog.
Description : Sulphurous anhydride is
Last Answer : Sulphurous anhydride is A. `SO_(3)` B. `SO_(4)^(-2)` C. `SO_(3)^(2-)` D. `SO_(2)`
Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is
Last Answer : Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is A. `SP^ ... `SP^(3)` C. SP D. `dSP^(2)`
Description : Electronegativity of carbon atoms depends upon their state of hybridisation. In which of the following compounds, the carbon marked with asterisk is m
Last Answer : Electronegativity of carbon atoms depends upon their state of hybridisation. In which of the following compounds, the ... 2)-overset(**)CH_(2)-CH_(3)`
Description : `Mf + XeF_(4) rarr M^(+) A^(-) (M^(+)-` alkali metal cation) The state of hybridisation of the central atom in A and sphere of the species are:
Last Answer : `Mf + XeF_(4) rarr M^(+) A^(-) (M^(+)-` alkali metal cation) The state of hybridisation of ... )d^(3)`, pentagonal planar D. no compound formed at all
Description : Which one of the following is a correct pair with respect to molecular formula of xenon compound and hybridisation state of xenon in it ?
Last Answer : Which one of the following is a correct pair with respect to molecular formula of xenon compound and hybridisation state ... sp^(3)d` D. `XeF_(4), sp`
Description : In a compound of sulphur, the sulphur atom is in second excited state. The possible hybridisation of sulphur is
Last Answer : In a compound of sulphur, the sulphur atom is in second excited state. The possible hybridisation of sulphur is A. `sp^ ... sp^(3)` (or) `sp^(3)d^(2)`
Description : 15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry
Last Answer : (i) The acid is to be added slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution.
Description : What is hybridisation on the central atom of `SiO_(2)`.
Last Answer : What is hybridisation on the central atom of `SiO_(2)`. A. sp B. `sp^(2)` C. `sp^(3)` D. `sp^(3)d`
Description : Which of the following pair have same hybridisation :-
Last Answer : Which of the following pair have same hybridisation :- A. `ClO_(4)^(-) & ClO_(2)^(-)` B. `SF_(4) & C Cl_(4)` C. `BF_(3) & NF_(3)` D. `CO_(2) & SO_(2)`
Description : Which technique can be helpful in overcoming hybridisation barrier ?
Last Answer : Which technique can be helpful in overcoming hybridisation barrier ? A. Shoot tip culture B. Embyro rescue C. Protoplast fusion D. Both B and C
Description : Somatic hybridisation is achieved through ?
Last Answer : Somatic hybridisation is achieved through ? A. Grafting B. Protoplast fusion C. Conjugation D. Recombinant DNA technology
Description : The number of O atoms having `sp^(2)` hybridisation in `P_(4)O_(10)` molecule is:
Last Answer : The number of O atoms having `sp^(2)` hybridisation in `P_(4)O_(10)` molecule is:
Description : In the complexes [SbF_(5)]^(2-),sp^(3)d` hybridisation is present. Geometry of the complex is:
Last Answer : In the complexes [SbF_(5)]^(2-),sp^(3)d` hybridisation is present. Geometry of the ... B. Square bipyramidal C. Tetrahedral D. square planar
Description : An octahedral complex of `Co^(3+)` is diamagnetic . The hybridisation involved in the formation of the complex is :
Last Answer : An octahedral complex of `Co^(3+)` is diamagnetic . The hybridisation involved in the formation of the complex is : A. ... `d^(2)sp^(3)` D. `sp^(3)d`
Description : Nickel (Z=28) combines with a uninegative monodenatate ligands to form a diamagnetic complex `[NiL_(4)]^(2-)`. The hybridisation involved and the numb
Last Answer : Nickel (Z=28) combines with a uninegative monodenatate ligands to form a diamagnetic complex `[NiL_(4)]^(2-)`. The ... dsp^(2)`, one D. `sp^(3)`, zero
Description : The hybridisation and unpaired electrons in `[Fe(H_(2)O)_(6)^(2+)]` ion are :
Last Answer : The hybridisation and unpaired electrons in `[Fe(H_(2)O)_(6)^(2+)]` ion are : A. `sp^(3)d^(2)`,4 B. `d^(2)sp^ ... . `d^(2)sp^(3)`,4 D. `sp^(3)d^(2),2`
Description : Match Column-I with Column-II and select the correct answer with respect to hybridisation using the codes given below .
Last Answer : Match Column-I with Column-II and select the correct answer with respect to hybridisation using the codes given below . A ... )","(IV)"),(q,p,s,r):}`
Description : Find out the correct sentence. Hybridisation means crossing between genetically dissimilar plants Cross between two varieties is called as inter speci
Last Answer : Find out the correct sentence. Hybridisation means crossing between genetically dissimilar plants Cross between two ... (iii) D. (iii) and (iv)
Description : The bond angle and hybridisation in ether `(CH_3 OCH_3)` is :
Last Answer : The bond angle and hybridisation in ether `(CH_3 OCH_3)` is : A. sp B. `sp^(2)` C. `sp^(3)` D. `sp^(3)d`
Description : Which of the following pairs of Xenon compounds and their structure, hybridisation are correctly matched ?
Last Answer : Which of the following pairs of Xenon compounds and their structure, hybridisation are correctly matched ? A. `XeF_( ... )` octanedral `(sp^(3)d^(2))`
Description : Match the compounds give in Column I with the hybridisation an shape given in Column II and mark the correct option. Codes
Last Answer : Match the compounds give in Column I with the hybridisation an shape given in Column II and mark the correct option. Codes ... (A,B,C,D),(4,1,2,3):}`
Description : The increasing d-character in hybridisation of Xe in `XeF_(2), XeF_(4), XeF_(6)` is
Last Answer : The increasing d-character in hybridisation of Xe in `XeF_(2), XeF_(4), XeF_(6)` is A. `XeF_(2)lt XeF_(4) ... (2)` D. `XeF_(2)lt XeF_(6)lt XeF_(4)`
Description : `XeF_(4)` is a square planar molecule. The hybridisation of xenon atom in this molecule is
Last Answer : `XeF_(4)` is a square planar molecule. The hybridisation of xenon atom in this molecule is A. `dsp^(2)` B. `sp^(3)d` C. `sp^(3)d^(2)` D. `d^(2)sp^(3)`
Description : The hybridisation of Xe is `sp^(3)d^(2)` in
Last Answer : The hybridisation of Xe is `sp^(3)d^(2)` in A. `XeF_(2)` B. `XeO_(4)` C. `XeF_(4)` D. `XeO_(3)`
Description : The hybridisation of Xe in `XeO_(3)` is
Last Answer : The hybridisation of Xe in `XeO_(3)` is A. `sp^(2)` B. `sp^(3)d` C. `sp^(3)` D. `sp^(3)d^(2)`
Description : Number of `S-O-S` bonds and hybridisation of sulphur in `gamma`-form of sulphur trioxide?
Last Answer : Number of `S-O-S` bonds and hybridisation of sulphur in `gamma`-form of sulphur trioxide? A. `3,sp^(2)` B. `2,sp^(2)` C. `3,sp^(3)` D. `0,sp^(3)`
Description : What is the hybridisation of sulphur in `H_(2)SO_(4)` ?
Last Answer : What is the hybridisation of sulphur in `H_(2)SO_(4)` ? A. sp B. `sp^(2)` C. `sp^(3)` D. `sp^(3)d^(2)`
Description : Hybridisation of oxygen in `O_(2)F_(2)`
Last Answer : Hybridisation of oxygen in `O_(2)F_(2)` A. sp B. `sp^(2)` C. `sp^(3)` D. `sp^(3)d`
Description : The hybridisation of sulphur in `SF_(6)` is
Last Answer : The hybridisation of sulphur in `SF_(6)` is A. `sp^(3)` B. `d^(2)sp^(3)` C. `sp^(3)d^(2)` D. `sp^(3)d`
Description : The hybridisation of sulphur in `SF_(4)` is
Last Answer : The hybridisation of sulphur in `SF_(4)` is A. `sp^(3)` B. `sp^(3)d` C. `dsp^(2)` D. `sp^(3)d^(2)`
Description : Cultural hybridisation is delayed through globalisation.
Last Answer : State whether the following statement are true or false with reason : Cultural hybridisation is delayed through globalisation.
Description : In contemporary society global styles are given a unique local flavour. Explain the concept of cultural hybridisation with examples.
Last Answer : In contemporary society global styles are given a unique local flavour. Explain the concept of cultural hybridisation with examples.
Description : The two branches of a plant give two different fruits: tomatoes and brinjals. This can be explained (a) By hybridisation (b) By grafting one with the other (c) By nature’s freak (d) By (a) or (c) mentioned above
Last Answer : Ans:(b)