24) 63.5g Cu produces 36g water So 32g Cu will produce 36*32/63.5 = 18.1g water

Question

24) 63.5g Cu produces 36g water

So 32g Cu will produce 36*32/63.5 = 18.1g water

25) 4mol NH3 forms 6mol H2O

So 2mol NH3 forms 3mol H2O.

26) this question is blurred if it is 3p4 then answer is S bt if it is 3p6 then it is Ca2+

27) 3p subshell contain 6e- in which there are 3 orbitals and each orbital contain 2e-.

28) Cl = 2,8,7 contain 7 e- in outermost energy level

29) CHCl3 has tetrahedral geometry. C is sp3 hybridized in this molecule.

30)CH4 is non polar molecule, there is no polarity in this molecule, Rest of them have some dipole moment.

31)CO2 is linear molecule. C is sp hybridised.

32) b) O=C=O is correct lewis str.

33) I2 contain non polar covalent bond , does not have any charge separation and bond is formed by sharing of e-.

34) CH3OH is not a base does not give OH- like metal hydroxides.

35) Molarity = no.of moles/ vol.of solution in Litres

3 =n/0.5

n= 1.5mol

36) strong acid has pH=1

Explanation / Answer

24. Given the following reaction What is the total mass of H,0 prodaced when 32 grams of Cu is completely a. 18 g b. 9.0g 25, d 54g are formed when 2.0 moles of NH, react? 26. Which element or ion below has the electron configuration 1s 2s 2p'3s a. Br b. Ca d. Ne 27. The maximum number of electrons possible in a 3p orbital is: c. 10 d. 14 28. The number of electrons in the outermost energy level of chlorine is: c. 6 d. 7 29. Which of the following is the correct geometry for CHC1, b. bent a. tetrahedral d. linear 30. Which structural formula represents a nonpolar molecule? a. CH d. NH b. H2O C. HF 31. The geometry of the molecule CO2 can best be described by the term: a. lincar b. pyramidal c. tetrahedral d. trigonal planar 32. Which one of the following is the correct Lewis structure for CO? a. O-C-O 33. Which of the following contains a nonpolar covalent bond? d. 12 b. LiF c. CO a. SiO 34. Which of the following is not a base? d. KOH b. CH3OH c. Ca(OH2 a. NaOH s. The number of moles of KCI in 500 ml of a 3.0 M solution is d. 3.0 b. 0.5 mol c. 5.0 mol a. 15 mol solution has a pH of 1. The solution contains which of the follow a salt b. a strong base a strong acid c.

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