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5. Which of the following contains same, number of carbon atoms as are in 6.0 g, of carbon (C - 12)?, , (A) 6.0 g Ethane, (B) 8.0 g Methane, (C) 21.0 g Propane, (D) 28.0 g CO, , 6. What will be the molality of the solution, containing 18.25 g of HCI gas in 500 g, of water?, (A) 0.1m, (C)0.5m, , (B) 1m, (D) 0.1 m, , 7. What will be the molarity of a, solution that contains 5.85 g of, NaCl(s) per 500 mL?, , (A) 4 mol/L, (©) 0.2 mol/L, , (B) 20 mol/L, (D) 2 mol/L, , 8. Number of protons, neutrons and, electrons in the element goX~*! is:, (A) 89, 89, 242, , (B) 89, 142, 89, , (©) 89, 71, 89, , (D) 89, 231, 89, , 9. Atoms with same mass number but, different atomic numbers are called:, , (A) isotopes, (C) isochores, , (B) isobars, (D) None of these, , , , 5, Pafafed 4 8 faa ora cast, @ PST 6 g HIS (C -12) A sae, Ist TRAYS St eM & Tax, erie, , (A) 6.0 g Wt, (B) 8.09 HA, (C) 21.0 g WO, (D) 28.0 g CO, , 6. Se faa wt arctan ara Bifsrw, faeaa 8.25 g HCl TA 500g FAA, , ell 8?, (A) 0.1m (B)1m, (C) 0.5m (D)1m, , 7. NaCl & 500 ml wea faces at, AYER ad HifsTe FSS 5.85 g NaCl Ht, , wet @ voter arat A freee rea fear, Ta 8?, , (A) 4 mol/L (B) 20 mol/L, , (© 0.2 mol/L (D) 2 mol/L, , 8. feoett cea 9X2" A DIC, BIE Ud, scat ot He e(A) 89, 89, 242, (B) 89, 142, 89, (89, 71, 89, (D) 89, 231, 89, , 9. FRAT] fel SA TST SA, a a, , (A) wauIRe (B) Wau, (© waraaa (D) Sa 8 HS AT
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10. The similar physical and chemical, properties of elements in the same, group is due to the reason:, , (A) they have same no of electrons, , (B) they have same no of protons, , (C) they have same no of valence, electrons, , (D) they are extracted by similar, processes, , 11.Halogens are present in:, (A) p block (B) s block, (©) d block (D) f block, , 12. The magnetic quantum number, specifies, (A) Size of orbitals, (B) Shape of orbitals, (C) Orientation of orbitals, (D) Nuclear Stability, , 13. Which one of the following sets of ions, represents a collection of isoelectronic, species? (Atomic nos.: F = 9, Cl = 17,, Na = 11, Mg = 12, Al = 13, K = 19, Ca, = 20, Sc = 21), , (A) K*, Ca?*, Sc?*, CP, (B) Na‘, Ca** , Sc", FD, (CQ K*, Cr, Mg?*, Sc3*, (D) Na*, Mg?*, AP*, Cr, , 14.The electrons of the same orbitals can, be distinguished by, (A) Principal quantum number, , (B) Azimuthal quantum number, , (©) Spin quantum number, , (D) Magnetic quantum number, , 10. feet go A wars tifa siz, Waahe Yo are cea UIE ward S, waite :, are sdae ot ten Sar edt, , |, By go Bieta Rb Serr ere, \, (CQ S44 Saleh sctaclat wt Se, ade, , wa |, (0) 234M Uiearsel S Prepivia feu, ud 81, , 11. Sas Sue @:, (A) p-Se B) s-WHe, (C) d-96 (D) f- WHE, , 12. fanly wae wich ten ya, eal, , 13. Aa oF ae sagaigdacihe, Batata or Pref xa 82TH, SA F=9,Cl = 17, Na = 11, Mg =, 12, Al = 13, K = 19, Ca = 20, Sc=, , ), (A) K*, Ca**, Sc3*, Cr, (B) Na*, Ca**,, Sc*,, (© K*, Cr, Mg?*, Sc3*, (D) Na*, Mg?*, Al, Cr, , 14. TH Hah & Scars F fate we, wad, , RS wica Se, , 8) fergie @ice ter, , Q qaale wap wicd He, , (A, (, (, (D) Sear Weep HICH BST
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15. A body of mass 10 mg is moving with a, velocity of 100 ms”'. The wavelength of, de-Broglie wave associated with it, would be (Note: h = 6.63 x 104 Js), , (A) 6.63 x 10°” m, , (B) 6.63 x 10° m, , (C) 6.63 x 103'm, , (D) 6.63 x 10° m, , 16. Which of the following determines the, , atomic number of an atom?, , (A)Number of electrons., , (B)Number of protons., , (C)Number of electrons and protons., , (D)Number of protons and neutrons., , 17. Number of unpaired electrons in N?*:, , (A) 3 (B) 1, , (©) 2 (D) 0, , 18. A vessel of 120 mL capacity contains a, , certain amount of gas at 35 °C and 1.2, , bar pressure. The gas is transferred to, , another vessel of volume 180 mL at 35, , °C. What would be its pressure?, , (A) 0.8 bar (B) 0.6 bar, , (©)1.2 bar (D) 0.9 bar, , 19. The law, which states that at constant, temperature, the volume of a given, mass of gas is inversely proportional to, the pressure, is known as:, , (A) Boyle's law, , (B) Charle’s law, , (C) Combined gas law, , (D), , ) Avogadro's law, , 15. HS TE] HT RAIA 10 mg,, 100 m/s wt afa S afegia 81 ae a, Wel at def SraM e, (A) 6.63 x 10°” m, (B) 6.63 x 10°4m, (CQ 6.63 x 103'm, (D) 6.63 x 10°°m, , 16. SH 8 oF feet Fay, , pete b, Sage) Se, , Wert a te, , (CQ Saaert cen tier at eT, , (D) Wert aen =e wt eT, , _N2* Ff Sipe Saae rl wt HST 8:, (A) 3 (B) 1, (2 (D) 0, , . 35°C A aa 1.2 bar ag UZ 120 mL, enter are ora F tre at Fase Ara, ut 81 afe 35°C UR a HT 180 mL, eal aie Fare 8 Rua fear, Oe 8 HA ST ars ET ST?, , (A) 0.8 bar (B) 0.6 bar, (C) 1.2 bar (D) 0.9 bar, , 19. "PRR ag oR te Bt PB AT eT, ale Sa sat a, Bae", Ge ol a Pas?
