Description : Magnesium oxide can be obtained by heating :-
Last Answer : Magnesium oxide can be obtained by heating :- A. `MgCO_(3)` B. `Mg(NO_(3))_(2)` C. `Mg(OH)_(2)` D. All
Description : The volume of `CO_(2)` at STP obtained by heating 1 g of `CaCO_(3)` will be
Last Answer : The volume of `CO_(2)` at STP obtained by heating 1 g of `CaCO_(3)` will be A. 1 L B. `22.4 L` C. `0.224 L` D. `11.2 L`
Description : Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% pure limestone `(CaCO_(3))` :
Last Answer : Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% pure limestone `(CaCO_(3))` : A. 104.4 kg B. 105.4 kg C. 212.8 kg D. 106.4 kg
Description : Extra pure `N_2` can be obtained by heating
Last Answer : Extra pure `N_2` can be obtained by heating A. `NH_(3) " with " CuO` B. `NH_(4)NO_(3)` C. `(NH_(4))_(2) Cr_(2)O_(7)` D. `Ba(N_(3))_(2)`
Description : A gas is obtained on heating ammonium nitrate. Which of the following statements are incorrect about this gas
Last Answer : A gas is obtained on heating ammonium nitrate. Which of the following statements are incorrect about this ... acidic in nature D. is basic in nature
Description : Ammonium dichromate on heating liberates a gas. The same gas will be obtained by :
Last Answer : Ammonium dichromate on heating liberates a gas. The same gas will be obtained by : A. heating ` ... treating ammonia with `KMnO_(4)` in neutral medium
Description : Quicklime is an alkaline powder obtained by strongly heating which other material?
Last Answer : Chalk
Description : The product obtained after heating. the gypsum at 125°C?
Last Answer : Plaster of Paris
Description : The product obtained after the heating of White Phosphorous at a high temperature is?
Last Answer : Black Phosphorous
Description : Amorphous silicon is obtained by heating silica with
Last Answer : magnesium powder.
Description : Ethylene is obtained from ethyl bromide by : (a) Simple heating (b) Hydrolysis (c) Dehydrohalogenation (d) Nucleophilic substitution
Last Answer : Dehydrohalogenation
Description : What will be the volume of CO2 at NTP obtained on heating 10 grams of (90% pure) limestone [Pb. CET 2001] (A) 22.4 litre (B) 2.016 litre (C) 2.24 litre (D) 20.16 litre
Last Answer : (B) 2.016 litre
Description : Two samples of lead oxide were separately reduced to metallic lead by heating in a current of hydrogen. The weight of lead from one oxide was half the weight of lead obtained from the other oxide. ... (B) Law of constant proportions (C) Law of multiple proportions (D) Law of equivalent proportions
Last Answer : (C) Law of multiple proportions
Description : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by dehydration of the products gives
Last Answer : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by ... of the products gives A. B. C. D.
Description : Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. (A) 600-750 (B) 250-350 (C) 1000-1500 (D) 2000-2500
Last Answer : (A) 600-750
Description : Salt A commonly used in bakery products on heating gets converted into another salt B which itself is used for removal the hardness of water and a gas C is evolved. The gas C when passed through lime water ,turns it ... © A is baking soda ,B is washing soda and C is carbon dioxide (d) both a and c
Last Answer : (d) both a and c
Description : Beehive coke oven (A) Facilitates by-products recovery (B) Takes 2-3 days for coking of coal but requires no external fuel for heating (C) Gives larger yield of coke (around 85%) as compared to by-product ovens (D) Produces coke with very poor strength
Last Answer : (B) Takes 2-3 days for coking of coal but requires no external fuel for heating
Description : Name four products other than edible oil which are obtained from oilseeds grown in India. -SST 10th
Last Answer : (i) Soaps, (ii) Medicines, (iii) Cattle feed, (iv) Perfumes.
Description : Which products will be obtained when lead nitrate is heated simply. Write balanced chemical equation for the reaction? State the type of chemical reaction that occur in the change. -Chemistry
Last Answer : Answer. Lead monoxide, nitrogen dioxide and oxygen gas will be liberated. It is thermal decomposition reaction.
Description : `CH_(3)CH_(2)CH_(2)CONH_(2)` is boiled with aqueous NaOH, then the reaction mixture is acidified with HCl. The products obtained are
Last Answer : `CH_(3)CH_(2)CH_(2)CONH_(2)` is boiled with aqueous NaOH, then the reaction mixture is acidified with HCl. The ... CH_(3)CH_(2)CH_(2)COO^(-)+NH_(4)Cl`
Description : When chlorine reacts with cold and dilute solution of sodium hydroxide, the products obtained are
Last Answer : When chlorine reacts with cold and dilute solution of sodium hydroxide, the products obtained are A. (1) `ClO_2^ ... ClO_2^-` D. `ClO^-` and `ClO_3^-`
Description : Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments, are all obtained from plants that are (a) Ferns (b) Algae (c) Monocotyledons and dicotyledons (d) Gymnosperms
Last Answer : Ans:(d)
Description : Which of the following is one of the commercial products obtained from Gelidium and Gracilaria and are used to grow microbes and in preparations of icecreams and jellies? (1) Agar (2) Chlorella (3) Spirullina (4) Gymnosperms
Last Answer : (1) Agar Explanation: Agar, one of the commercial products obtained from Gelidium and Gracilaria are used to grow microbes and in preparations of ice-creams and jellies.
Description : Crude oil is subjected to vacuum distillation in the last stage, because (A) High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose (B) Lighter/low ... prone to thermal decomposition (C) High purity products can be obtained thereby (D) None of these
Last Answer : (A) High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose
Description : Name the products obtained when anisole is treated with HI.
Last Answer : Ans. Phenol and methyl iodide.
Description : The energy obtained from plant and plant products is called
Last Answer : bio energy.
Description : Name the products obtained by combustion pyrolysis.
Last Answer : Fuel gas, ethanol and charcoal
Description : Which of the following is a violation of the code of professional ethics for certified public accountants? a. A CPA permits his/her name to be used in a client's advertising as having ... the professional designation "CPA" after his name on posters employed in connection with his election campaign
Last Answer : Based on information obtained in an audit, a CPA reports an illegal act of his client to government authorities.
Description : When yeast ferments glucose, the products obtained are (a) ethanol and CO2 (b) methanol and CO2 (c) ethanol and water (d) water and CO2.
Last Answer : a) ethanol and CO2
Description : Which of the following products are obtained by anaerobic respiration from yeast? (a) Beer and wine (b) Alcohols (c) CO2 (d) All of these
Last Answer : d) All of these
Description : Which one of the following statements is wrong? (a) Chlorella and Spirulina are used as space food. (b) Mannitol is stored food in Rhodophyceae. (c) Algin and carrageenan are products of algae. (d) Agar-agar is obtained from Gelidium and Gracilaria.
Last Answer : (b) Mannitol is stored food in Rhodophyceae.
Description : Some contemporary products already obtained by plasmid technology include a. interferon b. insulin c. human growth hormone d. A-C above are correct
Last Answer : d. A-C above are correct
Description : Nicotine is(A) A volatile alkaloid (B) Obtained by treating by-products of the tobacco processing industry (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : The dual of a Boolean expression is obtained by interchanging (A) Boolean sums and Boolean products (B) Boolean sums and Boolean products or interchanging 0's and 1's (C) Boolean sums and Boolean products and interchanging 0's & 1's (D) Interchanging 0's and 1's
Last Answer : (C) Boolean sums and Boolean products and interchanging 0's & 1's