short questions Answers by Gotest Just another WordPress site
KPK 11th Class Chemistry Chapter 5 States of Matter-II Liquids Short Questions with answers are combined for all 11th class(Intermediate/hssc) Level students.Here You can prepare all Chemistry Chapter 5 States of Matter-II Liquids short question in unique way and also attempt quiz related to this chapter. Just Click on Short Question and below Answer automatically shown. After each question you can give like/dislike to tell other students how its useful for each.
Class/Subject: 11th Class Chemistry
Chapter Name: States of Matter-II Liquids
Board: All KPK Boards
- Malakand Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Mardan Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Peshawar Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Swat Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Dera Ismail Khan Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Kohat Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Abbottabad Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
- Bannu Board 11th Class Chemistry Chapter 5 States of Matter-II Liquids short questions Answer
Helpful For:
- All KPK Boards 11th Class Chemistry Annual Examination
- Schools 11th Class Chemistry December Test
- KPK 11th Class Chemistry Test
- Entry Test questions related Chemistry
KPK 11th Class Chemistry Chapter 5 States of Matter-II Liquids Short Questions Answers
Hs+________ Fs– ……… Hs+________Fs– Hs — Hs+____ Os-……… Hs+______Os+—C2H5 3. Smaller non-polar alkyl group (C2H5-) i.e. ethyl group because the miscibility of alcohol decreases sharply as the number of carbons increases.
Given at least two of the effects on our livers if water has weak hydrogen bonding among its molecules. Given at least two of the effects on our livers if water has weak hydrogen bonding among its molecules.
Effect No.1
The lower heat of vaporization of water will result in to fast and huge evaporation of water will causes rain and flood and also affect the water cycle. HF is a liquid at ordinary temperature while HCL is a gas. HF is a liquid at ordinary temperature while HCL is a gas.
Therefore, it exists in liquid sate at room temperature. While in HCL there are dipole-dipole forces, weaker than HF (Hydrogen bonding). There fore, HCL exists in gaseous state at room temperature.
↑
. H.Bond
Hs+______ Cls-………….. Hs+______ Cls–
↑
. Dipole- dipole forces H2O has high boiling point than HF, although Fluorine is more electronegative than oxygen. H2O has high boiling point than HF, although Fluorine is more electronegative than oxygen. Water and ethanol can mix easily in all proportions. Water and ethanol can mix easily in all proportions.
↑
H.Bond
Neon and Argon both are mono atomic noble gases of the same group. Neon has - 248°C boiling point while Argon has - 189°C. Why?
Neon and Argon both are mono atomic noble gases of the same group. Neon has - 248°C boiling point while Argon has - 189°C. Why?
The size of the electron cloud of the atoms or molecules.
When the size of the atom or molecules is large then the dispersion becomes easy and these force becomes more prominent and strong that is why Argon has high boiling point than Neon.
Different liquids have different rates of evaporation even at the same temperature.
Different liquids have different rates of evaporation even at the same temperature.
Earth were vessels keep water cool in hot summer day. Vacuum distillation can be used to avoid decomposition of a sensitive liquid.
Earth were vessels keep water cool in hot summer day. Vacuum distillation can be used to avoid decomposition of a sensitive liquid.
a) Earth wares have small pores through which evaporation occurs. The molecules having high K.E escape into the gaseous state and the average K.E of the remaining liquid is decreased, thus the temperature is lowered and water remains cool.
b) vacuum distillation can be used to avoid decomposition of a sensitive liquid.
There are certain compounds, which decompose, when heated to their normal B.P. vacuum distillation is carried out to avoid this decomposition. E.g. glycerin boils at 290°C under normal pressure (760 mmHg) but at this temperature glycerin decomposes. Therefore, the pressure is decreased to 50 mm at which glycerin boils at 210°C. such phenomenon is called vacuum distillation.
A liquid boils at different temperatures at sea – level and at mountain.
A liquid boils at different temperatures at sea – level and at mountain.
Evaporation of a liquid causes cooling. Evaporation of a liquid causes cooling. Temperature of a liquid remains constant during boiling although heat is being supplied continuously. Temperature of a liquid remains constant during boiling although heat is being supplied continuously. Why water droplet is spherical? Why water droplet is spherical?
