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Sugars can be hydrolyzed at room temperature by the action of
Which of the following constitutes an advantage in the use of hard water?
What is the function of H2SO4 in the following reaction?
C12H22O11 conc. H2SO4 → 12C + 11H2O
Which of the following polymers contains nitrogen?
One of the products of combustion of pentane in excess air is
Benzene produces more soot than ethene on burning because benzene
Hydrogenation of butene yields
A feasible cell was constructed by joining the two half cells below. Cu\(^{2+}\) (aq) + 2e\(^-\) → Cu(s) E\(^0\) = +0.34 V; Zn\({^2+}\) + 2e\(^-\) → Zn\((_s)\) E\(^0\) = - 0.76V. What is the standard e.m.f. of the cell?
In the electrolysis of CuSO4(aq) using copper electrodes, the reaction at the anode is
Given that the order of reactivity of four metals is P>Q>R>S, which of the following reactions is feasible?
A concentrated solution containing H+, Cu2+,OH- and CI- was electrolyzed using platinum electrodes which of the ions will be discharged at the cathode?
Which of the following substances decomposes when an electric current is passed through it?
What is oxidized in the reaction represented by the following equation? 3CU + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O
What is the oxidation number of nitrogen in Al(NO\(_3\))\(_3\)?
A reaction is represented by the equation below. A2(g) + B2(g) → 2AB(g); ∆H = +X kJmol-1 Which of the following statements about the system is correct?
Consider the following equation: Ag+ (aq) + CI-(aq) → Ag+CI- (s) ; ∆H = - 65.7 kJmol-1. From the equation, it can be deduced that
What does ∆H represent in the following equation ? Cl(g) + e- → CI- (g); ∆H = - 363 kJ mol-1
It can be concluded that gastric juice
A gas was evolved when a sample of gastric juice reacted with sodium trioxocarbonate (IV) . The gas evolved was
In which of the reactions represented by the following equations is HNO3 behaving as a typical acid?