RetestSF .pdf

File information


Original filename: RetestSF.pdf
Title: Name:
Author: Macko

This PDF 1.5 document has been generated by Microsoft® Word 2010, and has been sent on pdf-archive.com on 17/01/2012 at 15:58, from IP address 94.21.x.x. The current document download page has been viewed 846 times.
File size: 35 KB (1 page).
Privacy: public file


Download original PDF file


RetestSF.pdf (PDF, 35 KB)


Share on social networks



Link to this file download page



Document preview


Name:
Question No.

1

2

3

4

5

6

Answers:

1. How can we increase the boiling point of water?
1. By decreasing the pressure.
2. By adding more heat when boiling.
3. By adding a non-volatile solute.
4. By removing vapour from the gas phase above water.
A: 1, 3

B: 2, 3, 4

C: 1, 4

D: 3

2. We have four solutions: a. pure water; b. 0.1 M NaCl, c. 0.1 M Na 2SO4; d. 0.1 M Na3PO4.
Which statements are true?
1. The vapour pressure of the solutions increase in the following order: a < b < c < d.
2. The vapour pressure of the solutions increase in the following order: b = c = d < a.
3. The osmolarity of the solutions increase in the following order: a < b < c < d.
4. The boiling point of the solutions increase in the following order: a < b < c < d.
A: 2, 3

B: 1, 4

C: 2, 3, 4

D: 3, 4

3. Comparing the metals with non-metals of the same period, which statements are true?
1. Non-metals have higher ionisation energy and higher radii.
2. Metals have lower electronegativity and metals are smaller.
3. Metals and non-metals generally form ionic bond.
4. The metals belong to the transition elements and non-metals to the representative
elements.
A: 1, 3, 4
B: 3
C: 2, 3, 4
D: 1, 3
4. The hydrogen bonding between the water molecules results:
1. the high boiling point of water.
2. the high vapour pressure of water.
3. the high surface tension of water.
4. the bent shape of water molecule.
A: 1, 2, 3

B: 1, 2

C: 1, 2, 3, 4

D: 2, 3

5. A dynamic equilibrium can be reached in the following systems except:
A. 10 mL oil placed on top of 30 mL water.
B. Solid aluminium hydroxide in the saturated solution of aluminium hydroxide.
C. Nitrogen and hydrogen gas in a closed container at 400C.
D. Liquid ether and its vapour in a closed container at 10C.
6. In the following reaction: H2 (g) + I2 (g)  2 HI (g) H < 0 kJ which of the following can
result the increase in HI production?
1. The use of a catalyst.
2. Increasing the pressure.
3. Increasing the temperature.
4. Increasing the H2 concentration.
A: 3, 4
B: 2, 3, 4
C: 1, 2
D: 2, 4


Document preview RetestSF.pdf - page 1/1


Related documents


retestsf
sds
terbium sulfate
20 air vapour barrier system 07 08 2015
17 condensation 07 08 2015
goanna arthritis cream

Link to this page


Permanent link

Use the permanent link to the download page to share your document on Facebook, Twitter, LinkedIn, or directly with a contact by e-Mail, Messenger, Whatsapp, Line..

Short link

Use the short link to share your document on Twitter or by text message (SMS)

HTML Code

Copy the following HTML code to share your document on a Website or Blog

QR Code

QR Code link to PDF file RetestSF.pdf