Description : Oil of Wintergreen (Methyl salicylate) is obtained by treating salicylic acid with (a) Methane at 150°C (b) CH3OH and conc. H2SO4 (c) Methyl chloride (d) NaOH and then CH3OH
Last Answer : CH3OH and conc. H2SO4
Description : Anion gap in plasma is because (A) Of differential distribution of ions across cell membranes (B) Cations outnumber anions in plasma (C) Anions outnumber cations in plasma (D) Of unmeasured anions in plasma
Last Answer : Answer : B
Description : Anion gap is the difference in the plasma concentrations of (A) (Chloride) – (Bicarbonate) (B) (Sodium) – (Chloride) (C) (Sodium + Potassium) – (Chloride + Bicarbonate) (D) (Sum of cations) – (Sum of anions)
Last Answer : Answer : C
Description : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) " " (iii) NO_(2)^(-) " " (iv)Cl^(-)` `(v)
Last Answer : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) ... NO_(3)^(-) " " (vii) CH_(3)CO O^(-)`
Description : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When ... ))overset(|)(C)-CH_(2)-CH=O+CH_(2)=O`
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (|)overset(CH_(3))overset(|)(C)-CH=CH_(2)`
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (3))overset(|)(CH)-CH_(2)-COCl+CH_(3)MgCl`
Description : Which of the following pair of anions are identified by conc. `H_(2)SO_(4)`.
Last Answer : Which of the following pair of anions are identified by conc. `H_(2)SO_(4)`. A. `NO_(3)^(-), CO_(3)^(2-)` B. ... -)` D. `CO_(3)^(2-), CH_(3)CO O^(-)`
Description : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of ... `H_3PO_2` D. `SOCl_2 , PCl_5` and `H_3PO_5`
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give ... porchloric acids D. (D) chloric and hypochlorus acids
Description : Which of the following anion behaves in a different manner than other on heating with conc. `H_(2)SO_(4)` ?
Last Answer : Which of the following anion behaves in a different manner than other on heating with conc. `H_(2)SO_(4) ... Br^(-)` D. All behave in a similar manner
Description : Which anion does not liberate any gas with dilute as well as conc. `H_(2)SO_(4)`.
Last Answer : Which anion does not liberate any gas with dilute as well as conc. `H_(2)SO_(4)`. A. `NO_(2)^(-)` B. `NO_(3)^(-)` C. `SO_(3)^(2-)` D. `SO_(4)^(2-)`
Description : Anion exchanger is regenerated usually with (A) NaOH (B) H2SO4 (C) Hydrazine (D) Alum solution
Last Answer : (A) NaOH
Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?
Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.
Description : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i)Conc. NaOH")underset((ii)H^(+)) to` product is
Last Answer : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i) ... )C-C-C-CH_2),(" | ||"),(" "H_(3)C " "OH):}`
Description : `F_2 +"dil NaOH" to A + NaF + H_2O` `H_2O` + conc. NaOH `to` B + NaF + `H_2O` A and B respectively are :
Last Answer : `F_2 +"dil NaOH" to A + NaF + H_2O` `H_2O` + conc. NaOH `to` B + NaF + `H_2O` A and B respectively ... B. `O_2 and OF_2` C. Both `O_2` D. Both `OF_2`
Description : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)
Last Answer : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K" ... -nitroaniline D. toluene, m-nitrobenzene and m-toulidine
Description : Bauxide ore is made up of `Al_(2)O_(3) + SiO_(2) + TiO_(2) + Fe_(2) O_(3)`. This ore is treated with conc. `NaOH` solution at `500 K` and `35` bar pre
Last Answer : Bauxide ore is made up of `Al_(2)O_(3) + SiO_(2) + TiO_(2) + Fe_(2) O_(3)`. This ore is treated with ... `Na_(2)SiO_(3)` both D. `Na_(2)SiO_(3)` Only
Description : Which of the following reagents readily react with ethyl methyl ether? (a) NaOH (b) Conc HI (c) KMnO4 (d) H2O
Last Answer : Conc HI
Description : Bromobenzene can be prepared by treating aniline with (a) Conc HBr (b) Br2/FeBr3 (b) CuBr (d) Nitrous acid then CuBr
Last Answer : Nitrous acid then CuBr
Description : Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the fol
Last Answer : Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P ... of the following reaction sequence is (are) B. C. D.
Description : A separately excited generator as compared to a self-excited generator (a) is amenable to better voltage con-trol (b) is more stable (c) has exciting current independent of load current (d) has all above features
Last Answer : Ans: d
Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q
Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_ ... Dissolving in `H_(2)O` D. Dissolving in dil,HCl
Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ... B. C and Al C. C in both D. Al in both
Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` ... D. `Na_(4)[Fe(OH)_(6)],H_(2)SO_(4)`
Description : Most stable anion is :
Last Answer : Most stable anion is : A. `CH_(3)-CH_(2)-overset(Theta)NH` B. `CH_(3)-overset(CH_(3))overset(|) ... (Theta)(CH_(2))` D. `CH_(2)-overset(Theta)CH`
Description : Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH
Last Answer : Fusing sodium benzenesulfonate with NaOH
Description : Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst
Last Answer : treating benzenediazonium chloride with KI
Description : Among the following anions, the order of basicity is : `overset(-)(C )H_(3)(I), overset(-)(N)H_(2)(II), OH^(-)(III),F^(-)(IV)`
Last Answer : Among the following anions, the order of basicity is : `overset(-)(C )H_(3)(I), overset(-)(N)H_(2)(II), OH^(- ... > II > I > IV D. III > I > II > IV
Description : While conducting Luminol test, luminol reacts with hydrogen salt and forms: (a) Di-anion (b) Cation (c) Anion (d) All of the above
Last Answer : Ans: (a). Di-anion
Description : The ammonia prepared by treating ammonium sulphate with calcium hydroxide is completely used by `"NiCl"_(2).6H_(2)O` to form a stable coordination com
Last Answer : The ammonia prepared by treating ammonium sulphate with calcium hydroxide is completely used by `"NiCl"_(2).6H_(2)O` ... Cl = 35.5, Ca = 40, Ni = 59)
Description : `underset("(mixture of two anions)")A underset("excess of "BaCl_2)overset("Cold")to"white ppt."overset"filtered"to"(Filtrate)" overset"boil"to"White p
Last Answer : `underset("(mixture of two anions)")A underset("excess of "BaCl_2)overset("Cold")to"white ppt."overset"filtered" ... -), HCO_(3)^(-)` D. None of these
Description : Reddis-brown gas is obtained when the following are treated with conc. `H_(2)SO_(4)` ?
Last Answer : Reddis-brown gas is obtained when the following are treated with conc. `H_(2)SO_(4)` ? A. `Br^(-)` B. `NO_(2)^(-)` C. `NO_(3)^(-)` D. `SO_(3)^(2-)`
Description : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` orange red vapours are obtained. These are of the compound
Last Answer : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2 ... B. chromyl chloride C. chromic chloride D. chromic sulphate
Description : A Unknown salt (S) when heated with dil `H_(2)SO_(4)` does not evolve brown vapours but with conc. `H_(2)SO_(4)` brown vapours are obtained. The vapou
Last Answer : A Unknown salt (S) when heated with dil `H_(2)SO_(4)` does not evolve brown vapours but with conc. `H_(2)SO_(4)` ... 3)^(-)` C. `I^(-)` D. `Br^(-)`
Description : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R): The reaction involves cleavage of C-O bo
Last Answer : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R ... R is false D. A is false but R is true
Description : Hot conc. `H_(2)SO_(4)` acts as moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following elements is oxidised
Last Answer : Hot conc. `H_(2)SO_(4)` acts as moderately strong oxidising agent. It oxidises both metals and non-metals. Which ... products ? A. Cu B. S C. C D. Zn
Description : Regarding interferon: a. it is a virus specific molecules b. it acts by neutralizing exotoxin c. it enhances the histocompatibility antigen on cell surface and thereby activate the T cells d. it exerts its effect by integrating itself with the DNA of virus infected cells
Last Answer : it enhances the histocompatibility antigen on cell surface and thereby activate the T cells
Description : Choose the correct statement about magaldrate: A. It is a mixture of magnesium and aluminium hydroxides B. It has a rapid as well as sustained acid neutralizing action C. Its acid neutralizing capacity is 2 m Eq/g D. It causes systemic alkalosis
Last Answer : B. It has a rapid as well as sustained acid neutralizing action
Description : The following is true of aluminium hydroxide gel except: A. It is a weak and slowly reacting antacid B. Its acid neutralizing capacity decreases on storage C. It interferes with absorption of phosphate in the intestine D. It causes loose motions as a side effect
Last Answer : D. It causes loose motions as a side effec
Description : how to make a home made formula for neutralizing dog urine
Last Answer : There are medications and powders you can either give your dog or sprinkle on the food that will decrease the acidity in the dog's urine. You can find these products at your local pet supply store.
Description : Which of the following statements regarding TNFa are true? a. TNFa has a marked procoagulant effect b. Passive immunization of patients with neutralizing antibodies to TNFa improves survival from multi-organ ... expression d. The most potent known stimulus for TNFa production and release is IL-1
Last Answer : Answer: a, c TNFa has a marked procoagulant effect on endothelial cells, precipitating intravascular thrombosis. TNFa causes endothelial cells to release procoagulant activity (tissue factor), ... to produce TNFa, however the most potent stimulus for TNFa production and release is endotoxin
Description : The process of neutralizing the fatty acids present in the oils or fats by adding sodium
Last Answer : hydroxide is called saponification.
Description : The following antiulcer drug does not act by reducing the secretion of or neutralizing gastric acid: A. Magaldrate B. Sucralfate C. Misoprostol D. Omeprazol
Last Answer : B. Sucralfate
Description : Antacid combinations of magnesium and aluminium salts are superior to single component preparations because: A. They have rapid as well as sustained acid neutralizing action B. They are less likely to affect gastric emptying C. They are less likely to alter bowel movement D. All of the above
Last Answer : D. All of the above
Description : As an antacid, sodium bicarbonate has the following disadvantages except: A. It causes acid rebound B. In ulcer patients, it increases risk of perforation C. It has low acid neutralizing capacity D. It is contraindicated in hypertensives
Last Answer : C. It has low acid neutralizing capacity
Description : The ‘acid neutralizing capacity’ of an antacid is governed by: A. The equivalent weight of the antacid B. The pH of 1N solution of the antacid C. The rate at which the antacid reacts with HCl D. Both ‘A’ and ‘C’
Last Answer : D. Both ‘A’ and ‘C’
Description : Among the following the number of compounds that can act as dehydrating agent are …… `Conc. H_(2)SO_(4),"Anhyd". CaCl_(2),Conc. HNO_(3), CaO, CuSO_(4)
Last Answer : Among the following the number of compounds that can act as dehydrating agent are `Conc. H_(2)SO_(4),"Anhyd" ... CaO, CuSO_(4).5H_(2)O, P_(2)O_(5)`