Chemistry - Mock Test 4

Question 31

The set representing the correct order of first ionization enthalpy is

A) K > Na > Li B) Be > Mg > Ca C) B > C > N D) Ge > Si > C

---

No Details

Question 32

The ratio of dissociation constant of two weak acids HA and HB is 4 At what molar concentration ratio, the two acids will have same pH in separates solutions

A) 2 B) 0.5 C) 4 D) 0.25

---

No Details

Question 33

The ratio of dissociation constant of two weak acids HA and HB is 4 At what molar concentration ratio, the two acids will have same pH in separates solutions

A) 2 B) 0.5 C) 4 D) 0.25

---

No Details

Question 34

Which one is softest metal

A) Li B) Na C) K D) Be

---

No Details

Question 35

Which of the following ion has the largest radius

A) Cl⁻ B) S²⁻ C) Na⁺ D) F⁻

---

No Details

Question 36

Major contributor of global warming is

A) COâ‚‚ B) CO C) CHâ‚„ D) CFC

---

No Details

Question 37

The total value of magnetic quantum number for n = 4

A) 9 B) 16 C) 12 D) None of these

---

No Details

Question 38

Number of mole of 1 m³ gas at NTP are

A) 44.6 B) 40.6 C) 42.6 D) 48.6

---

No Details

Question 39

In Cu (Atomic no. – 29)

A) 13 electrons have spin in one direction and 16 electrons in other direction. B) 14 electrons have spin in one direction and 15 electrons in other direction. C) One electron can have spin only in clockwise direction. D) None of above is correct.

---

No Details

Question 40

Tetrahalides of group-14 elements (except that of carbon) act as

A) Reducing agent B) Lewis acid C) Lewis bases D) None of these

---

No Details