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1) The system becomes more stable if it

2) Which of the following is incorrect about the enthalpy of neutralization?

3) The reaction proceeds through the evolution of heat

4) Work may be defined in terms of pressure-volume as

5) Which of the following value of standard reduction potential suggest that the rate of oxidation is equal to the rate of reduction

6) In an acidic medium, moles of H₂O and H⁺ are added respectively for the given reaction are
10 Cl^- + 2MnO₄^- → 2 Mn ²⁺ + 5 Cl₂

7) Which of the following have high reduction potential than hydrogen

8) If 8g of methane is burned in excess of oxygen then the standard enthalpy of combustion is

9) The condition for standard enthalpy change is

10) In a reaction, the oxidation number of Cu decreases by 2. This indicates that Cu is

11) O_2(g) + 2H₂O _(l) + X e^- → 4OH^-
The “X” electrons in the above equation are

12) Which is used to measure the enthalpy of combustion?

13) The born-Haber cycle is used to determine the lattice energy of

14) The net heat change in a chemical reaction is the same whether it is brought in two or more different ways in one or several steps. It is known as

15) Solutions containing chlorate (I) ions are used as household bleaches and disinfectants. These solutions decompose on heating as shown;
3ClO^- → ClO₃^- + 2Cl^-
Which of the following ion will have the highest oxidation state

16) The amount of heat required to convert one mole of a solid directly into its vapour state at STP is called as

17) Consider the following reaction
MnO₂ + HCl → MnCl₂ + H₂O + Cl₂
Which atom undergoes a decrease in oxidation number?

18) If the enthalpy of products is more than reactants, the value of ∆H is denoted by

19) The E°_red of an element can be calculated by comparing it with

20) In an exothermic reaction, the heat content of the

21) C₂O₄^2- → 2CO₂ + X e^-
The ‘X’ electrons in the above equation are

22) The dissolution of ammonium chloride in water is a/an

23) Which of the following is a list of metals in order from strongest to weakest reduction agents?

24) During balancing of redox equation by oxidation number method the ‘O’ and ‘H’ atoms are balanced by

25) Which of the following is an incorrect statement about electrolytic cell?