Description : Which of the following is an acid base indicator.... a)Vinegar b)Baking soda c)Litmus d)Common salt -Science-7
Last Answer : c) Litmus is a acid-base indiactor.
Description : The percentage degree of hydrolysis of a salt of weak acid (HA) and weak base (BOH) in its 0.1 M solution is found to be `10%.` If the molarity of the
Last Answer : The percentage degree of hydrolysis of a salt of weak acid (HA) and weak base (BOH) in its 0.1 M solution is ... A. `5%` B. `10%` C. `20%` D. none
Description : Which conditions are fulfilled in case of combustion? (a) Oxygen is reduced (b) Burning compound undergoes oxidation (c) Oxygen is reducing agent (d) Both (a) and (b)
Last Answer : (d) Both (a) and (b)
Description : The compound that can work both as an oxidising as well as reducing agent is :
Last Answer : The compound that can work both as an oxidising as well as reducing agent is : A. `KMnO_(4)` B. `H_(2)O_(2)` C ... (SO_(4))_(3)` D. `K_(2)Cr_(2)O_(7)`
Description : The compound which can act as an oxidizing agent as well as reducing agent is
Last Answer : The compound which can act as an oxidizing agent as well as reducing agent is A. `HNO_(2)` B. Hl C. HCN D. HCOOH
Description : The nurse recognizes which of the following signs as typical of the patient in shock? a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate. b) Flushed face Pallor is ... urine output Usually, a low blood pressure and concentrated urine are observed in the patient in shock.
Last Answer : a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate.
Description : What is an Acid - base indicator?
Last Answer : Methyl orange
Description : Which of the following concerning the pH of urine is correct? 1) is a useful indicator of the acid/base balance of the blood 2) rises on a vegetarian diet 3) is determined by the concentration of ... lower than 5.5 in renal tubular acidosis 5) would be above 7.0 after prolonged and severe vomiting
Last Answer : Answers-2 c - excretion of ammonium occurs when an acid urine is produced but the pH of urine is of course determined by the concentration of H+ ions d-unable to lower the pH to ... and distal nephron and this perpetuates the metabolic alkalosis until the fluid balance is restored with IV fluids.
Description : What is the active ingredient in many common laxative that is also an acid-base indicator?
Last Answer : ANSWER: PHENOLPHTHALEIN (pron: fEn-el-thal-E-en)
Description : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa
Last Answer : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. ... False. D. If both Assertion & Reason are False.
Description : A buffer consists of a weak acid and is salt.
Last Answer : (i) CH3COOH + CH3COONa (ii) C6H5COOH + C6H5COONa (iii) H2CO3 + NaHCO3 (iv) H3PO3 + NaH2PO4
Description : The bacterium Bacillus thuringiensis is widely used in contemporary biology as (a) insecticide (b) agent for production of dairy products (c) source of industrial enzyme (d) indicator of water pollution
Last Answer : (a) insecticide
Description : Antacid contain a) Weak acid b) Weak base c) Strong acid d) Strong base
Last Answer : b) Weak base
Description : Which of the following plots will obtained for a conductomeric titration of strong acid against a weak base?
Last Answer : Which of the following plots will obtained for a conductomeric titration of strong acid against a weak base? A. B. C. D.
Description : Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl
Last Answer : It liberates nitrogen on treatment with ice-cold nitrous acid
Description : Which one of the following statements about buffers is false? a. They work inside cells. b. They consist of a weak acid and weak base. c. They prevent pH shifts. d. They enhance chemical reactions.
Last Answer : d. They enhance chemical reactions.
Description : The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong (A) Base and strong acid (B) Base and weak acid (C) Acid and weak base (D) None of these
Last Answer : Option A
Description : Which of the following acts only as reducing agent
Last Answer : Which of the following acts only as reducing agent A. `KMnO_(4)` B. `CaOCl_(2)` C. `H_(2)S` D. `HNO_(2)`
Description : The strongest reducing agent?
Last Answer : Lithium
Description : Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as ... (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)
Last Answer : C) (A), (B) & (D)
Description : Name the reducing agent in the following reaction: 3MnO2 + 4Al———— > 3Mn + 2Al2O3 State which is more reactive, Mn or A1 and why? -Chemistry
Last Answer : ‘Al’ is reducing agent. ‘AT is more reactive than Mn v ‘Al’ displaces Mn from its oxide.
Description : Reducing agent involved in fermentation? -Biology
Last Answer : answer:
Description : Reducing agent for `CO_(2)` fixation in bacterial photosynthesis is
Last Answer : Reducing agent for `CO_(2)` fixation in bacterial photosynthesis is A. `NADH_(2)` B. `NADPH_(2)` C. `FMNH_(2)` D. All of these
Description : Assertion :- `Cr^(+2)` is a reducing agent and `Mn^(+3)` is oxidising agent. Reason :- `Mn^(+3)` has `d^(5)` configuration.
Last Answer : Assertion :- `Cr^(+2)` is a reducing agent and `Mn^(+3)` is oxidising agent. Reason :- `Mn ... is False. D. If both Assertion & Reason are False.
Description : Assertion :- Bromide ion is serving as a reducing agent in the reaction `2MnO_(4)^(-)(aq.)+Br^(-)(aq.)+H_(2)Orarr2MnO_(2)(aq.)+BrO_(3)^(-)(aq.)+2OH^(-
Last Answer : Assertion :- Bromide ion is serving as a reducing agent in the reaction `2MnO_(4)^(-)(aq.)+Br^( ... is False. D. If both Assertion & Reason are False.
Description : Assertion :- A reducing agent is a substance which accepts electron. Reason :- A substanc which helps in oxidaton is known as reducing agent.
Last Answer : Assertion :- A reducing agent is a substance which accepts electron. Reason :- A substanc which helps ... . D. If both Assertion & Reason are False.
Description : STATEMENT-1 : `H_(2)SO_(4)` can not act as reducing agent. STATEMENT-2 : Sulphur can not increase its oxidation number beyond `+6`.
Last Answer : STATEMENT-1 : `H_(2)SO_(4)` can not act as reducing agent. STATEMENT-2 : Sulphur can not increase ... False. D. If both Assertion & Reason are False.
Description : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions act as oxidising agent and Zn atoms act as a reducing agent. Reas
Last Answer : Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions ... the Reason is False. D. If both Assertion & Reason are False.
Description : A sulphur containing species that can not be a reducing agent is :-
Last Answer : A sulphur containing species that can not be a reducing agent is :- A. `SO_(2)` B. `SO_(3)^(-2)` C. `H_(2)SO_(4)` D. `S_(2)O_(3)^(2-)`
Description : In which of the following reaction `H_(2)O_(2)` acts as reducing agent :-
Last Answer : In which of the following reaction `H_(2)O_(2)` acts as reducing agent :- A. `2FeCl_(2)+2HCl+H_(2)O_(2)rarr ... 3)+H_(2)O_(2)rarr H_(2)SO_(4)+H_(2)O`
Description : A reducing agent is a substance Which can:
Last Answer : A reducing agent is a substance Which can: A. Accept agent is a substance which can : B. Accept electrons C. Donate electrons D. Donate protons
Description : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.
Last Answer : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives ... is False. D. If both Assertion & Reason are False.
Description : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases
Last Answer : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In ... C. `SO_(3)^(2-)` D. `KI`
Description : Which of the following phosphorus halide is the best reducing agent?
Last Answer : Which of the following phosphorus halide is the best reducing agent? A. `PCl_(3)` B. `PF_(3)` C. `PBr_(3)` D. `PI_(3)`
Description : Hydrazine `N_(2)H_(4)` acts as a reducing agent. To prepare 100 ml of 2 N hydrazine solution, the weight required will be
Last Answer : Hydrazine `N_(2)H_(4)` acts as a reducing agent. To prepare 100 ml of 2 N hydrazine solution, the weight required will ... B. 1.6 g C. 3.2 g D. 0.8 g
Last Answer : Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In ... ` C. `SO_(3)^(2-)` D. Kl
Description : In the following reaction, `SO_(4)` acts as a reducing agent: `SO_(2)+Cl_(2)+2H_(2)O to H_(2)SO_(4)+3HCl` Find the equivalent weight of `SO_(2)`.
Last Answer : In the following reaction, `SO_(4)` acts as a reducing agent: `SO_(2)+Cl_(2)+2H_(2)O to H_(2)SO_(4)+3HCl` Find the equivalent weight of `SO_(2)`.
Description : Statement-1: Carbon is not used as a reducing agent for the extraction of group 2 metals. Statement-2: Carbon reacts with group 2 metal to give carbid
Last Answer : Statement-1: Carbon is not used as a reducing agent for the extraction of group 2 metals. Statement ... Statement-1 is false but Statement -2 is true
Description : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is reducing agent.
Last Answer : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is ... -1 is false but Statement -2 is true
Description : Name the reducing agent that is used in the thermite process?
Last Answer : Name the reducing agent that is used in the thermite process? A. C B. Zn C. Na D. Al
Description : In the extraction of iron in the blast furnace, the reducing agent for the ore is
Last Answer : In the extraction of iron in the blast furnace, the reducing agent for the ore is A. Carbon monoxide B. Carbon dioxide C. Carbon D. Silica
Description : From the graph, which is the best reducing agent to reduce `Cu_(2)O` at high temperature
Last Answer : From the graph, which is the best reducing agent to reduce `Cu_(2)O` at high temperature A. Coke B. CO C. `CO_(2)` D. 1&2
Description : Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) `Fe_(2)O_(3)`is used to oxidise th
Last Answer : Consider the following statements in the extraction of iron from haematite: (I) `CO`is the main reducing agent (II) ... I, II and III D. I, II and IV
Description : The weakest reducing agent among the following is
Last Answer : The weakest reducing agent among the following is A. Hydrogen gas B. Coke C. Carbon monoxide gas D. Aluminium metal
Description : Assertion: `SO_(3)` acts as an oxidising agent as well as a reducing agent Reason: `SO_(2)` acts as an oxidising as well as a reducing agent
Last Answer : Assertion: `SO_(3)` acts as an oxidising agent as well as a reducing agent Reason: `SO_(2)` acts as an oxidising as well as a reducing agent
Description : `SO_(2)` is a strong reducing agent however it also act as an oxidising agent Which of the following reactions shows its oxidising nature ?
Last Answer : `SO_(2)` is a strong reducing agent however it also act as an oxidising agent Which ... colloidal sulphur D. Turning acidified dichromate paper green
Description : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is used as reducing agent Properties of element Y: (i) It is an o
Last Answer : Properties of elements X: (i) Its amide is used as a reducing agent (ii) Its amalgam is ... in its maximum oxidation state is neutral in aq. Medium