Amino Acid Peptide Bond. We covered all the Amino Acid Peptide Bond in this post for free so that you can practice well for the exam.
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MCQ on Amino Acid Peptide Bond for Students
Which of the statements about the reaction, ZnO +CO → Zn + CO2, is correct?
(a) ZnO is being oxidised
(b) CO is being reduced
(c) CO₂ is being oxidised
(d) ZnO is being reduced
Option d – ZnO is being reduced
Identify the characteristics of a chemical reaction.
(a) Change in the state, colour and temperature
(b) Evolution of a gas
(c) Formation of a precipitate
(d) All of the above
Option d – All of the above
Complete the chemical reaction Mg(s) + H₂SO4 (aq) →? :
(a) MgSO3 + H₂O
(b) MgSO + H₂O + 0₂
(c) MgSO4+H₂
(d) no reaction
Option c – MgSO4+H₂
Study the given reaction below. 2Pb(NO3)2 -> 2PbO + nA + O₂ In the above reaction, what is nA?
(a) 4NO₂
(b) 2NO₂
(c) 2PbNO₂
(d) NO₂
Option a – 4NO₂
In the solution of CuSO4, a piece of Zn is dropped. The solution becomes colourless. This reaction will be
(a) Substitution reaction
(b) Decomposition reaction
(c) Addition reaction
(d) Dissociation reaction
Option a – Substitution reaction
Which one of the following is a chemical change?
(a) Cutting of hair
(b) Graying of hair naturally
(c) Swelling of resin in water
(d) Cutting of fruit
Option b – Graying of hair naturally
Magnesium ribbon is rubbed before burning because it has a coating of
(a) basic magnesium carbonate
(b) basic magnesium oxide
(c) basic magnesium sulphide
(d) asic magnesium chloride
Option a – basic magnesium carbonate
Which of the following statements about the given reaction are correct? 3Fe (s) + 4H₂O(g) → Fe3O4 (s) + 4 H₂ (g) (i) Iron metal is getting oxidised (ii) Water is getting reduced (iii) Water is acting as reducing agent (iv) Water is acting as an oxidising agent
(a) (i), (ii) and (iii)
(b) (ii) and (iv)
(c) (i), (ii) and (iv)
(d) (ii) and (iv)
Option c – (i), (ii) and (iv)
A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
(a) KMnO4 is an oxidising agent, it oxidises FeSO4
(b) FeSO4 acts as an oxidising agent and oxidises KMnO4
(c) The colour disappears due to dilution; no reaction is involved
(d) KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compound.
Option a – KMnO4 is an oxidising agent, it oxidises FeSO4
In which of the following reactions, does H₂O₂ acts as a reducing agent?
(a) 2KI+H₂O2 →2KOH + I₂
(b) 2FeSO4+H₂SO4+H₂O2 → Fe2(SO4)3 + 2H₂O
(c) PbS+4H₂O₂ → PbSO4 + 4H₂O
(d) Ag₂O + H₂O2 → 2Ag + H₂O+O₂
Option d – Ag₂O + H₂O2 → 2Ag + H₂O+O₂
The following reaction is an example of a 4NH3(g) +5O₂ (g) → 4NO(g) + 6H₂O(g) A. displacement reaction B. combination reaction C. redox reaction D. neutralisation reaction
(a) A and D
(b) B and
(c) A and C
(d) C and D
Option c – A and C
The process of reduction involves
(a) the addition of oxygen
(b) the addition of hydrogen
(c) the removal of oxygen
(d) the removal of hydrogen
Option b – the addition of hydrogen
Three beakers labelled A, B and C each containing 25 ml of water were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solution contained in beakers A and B, whereas, in the case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is (are) correct? (i) In beakers A and B, an exothermic process has occurred. (ii) In beakers A and B, the endothermic process has occurred. (iii) In beaker C exothermic process has occurred. (iv) In beaker C endothermic process has occurred.
(a) (i) only
(b) (ii) only
(c) (i) and (iv)
(d) (iv), (ii) and (iii)
Option c – (i) and (iv)
Give the ratio in which hydrogen and oxygen are present in water by volume.
(a) 1: 2
(b) 1: 1
(c) 2: 1
(d) 1: 8
Option a – 1: 2
Which among the following statement(s) is (are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to (i) the formation of silver by decomposition of silver chloride (ii) sublimation of silver chloride (iii) decomposition of chlorine gas from silver chloride (iv) oxidation of silver chloride
(a) (i) only
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iv) only
Option a – (i) only
MnO₂ + 4HCl →MnCl₂ + 2H₂O + Cl₂ Identify the substance oxidized in the above equation.
(a) MnCl₂
(b) HCl
(c) H₂O
(d) MnO₂
Option d – MnO₂
A substance ‘X’ is used in white-washing is obtained and by heating limestone in the absence Identify ‘X’. of air.
(a) CaOCI2
(b) Ca (OH)2
(c) CaO
(d) CaCO3
Option a – CaOCl2
When Ag is exposed to air it gets a black coating
(a) AgNO3
(b) Ag₂S
(c) Ag₂O
(d) Ag₂CO3
Option b – Ag₂S
Which of the following are exothermic processes? (i) Reaction of water with quick lime (ii) Dilution of an acid (iii) Evaporation of water (iv) Sublimation of camphor (crystals)
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)
Option a – (i) and (ii)
Oxidation is a process which involves
(a) the addition of oxygen
(b) the addition of hydrogen
(c) the removal of oxygen
(d) the removal of hydrogen
Option a – the addition of oxygen
In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?
(a) Lead sulphate (insoluble)
(b) Lead acetate
(c) Ammonium nitrate
(d) Potassium sulphate
Option b – Lead acetate
What type of chemical reaction takes place when electricity is passed through water?
(a) Displacement
(b) Combination
(c) Decomposition
(d) Double displacement
Option c – Decomposition
Select the oxidising agent for the following reaction: H₂S +I₂ > 2HI + S
(a) I2
(b) H2S
(c) HI
(d) S
Option a – I2
Which of the following is an endothermic process?
(a) Dilution of sulphuric acid
(b) Sublimation of dry ice
(c) Condensation of water vapours
(d) Respiration in human beings
Option b – Sublimation of dry ice
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