PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

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PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 Among sodium phosphate, sodium sulphate and sodium chloride the solubility in water increases as. Chloride > Phosphate > Sulphate Sulphate > Pohosphate> Chloride Chloride > Sulphate > Phosphate Phosphate > Chloride > Sulphate
2 The electronic configuration of sodium (Z=11) 1s2, 2s2, 2p4 1s2, 2s2, 2p6, 3s2 , 2p5 1s2, 2s2, 2p6, 3s1 1s2, 2s2, 2p6, 3s2
3 Which among the following hydride is ionic in nature. Ammonia Protium oxide Calcium hydride Sulphane
4 Ionic compounds in general possess both High melting point and non -directional bonds High melting points and low boiling poinits Directional bonds and low boiling points High solubility in polar and non -polar bonds.
5 Solid sodium chloride does not conduct electricity be cause. In solid NaCl, no ions are present Solid NaCl is covalent in nature In solid NaCl, there is no mobility of ions In solid NaCl, there are no electrons.
6 Ionic reactions mainly take place in. Aqueous solutions and organic solvents of high polarity Non aqueous solvents of low polarity Gaseous state Solid state
7 Which of the following halide has lowest melting point. NaCl NaF NaBr NaI
8 Which of the following has the highest melting point. NaCl KCl MgO BaO
9 Among the solvents given below, with dielectric constant (E) given in parentheses which has highest solubility of KCI? Benzene (E=O) Carbon disulphide (E = O) Methanol (E =32) Acetone (E = 2)
10 Which of the following will exhibit variable electro Valency due to intert pair effect. Fe Sn K Both Fe and Sn
11 Which compound among the following does not contain an ionic bond. NaOH HCl KaS LiH
12 Which of the following compounds is electrovalent in nature. SO2 ICI KBr CHI3
13 Which of the following compound does not following octet rule. CS2 PBr3 IBr Br F3
14 An ionic compound X + Y - is most likely to be formed if Ionization enthalpy of X is high electron gain ethalpy of Y is low Ionization enthalpy of X is high electron gain enthalpy of Y is high Ionization enthalpy of X is low,electron gain enthalpy of Y is low Ionization enthalpy of X is low electron gain enthalpy of Y is high
15 Four elements A, B,C,D have atomic numbers Z , 1 ,Z, Z +1 and Z +2 Respectively If Z is 9, then bond between which pair of elements will be ionic. A and C D and C D and B B and C
16 Which of the following orbitals has maximum penetration effect. s p d f
17 Among the elements of third period, the element with lowest boiling point belongs to group. 1 14 16 18
18 Among the elements of second period the element with highest melting point belongs to group. 1 14 17 18
19 Which of the following has the highest melting poing. NaCl Li Cl KCl Rb Cl
20 Considering the elements F, Cl ,O and N, the correct order of their chemical reactivity in terms of oxidizing property is. F > Cl > N F > O > Cl > N Cl > F > O > N O > F > N > Cl
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