MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test With Answers

image
image
image

MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

Sr. # Questions Answers Choice
1 Water is essential for life on Moon Space Earth Sun
2 Ozone is a gas having boiling point Unstable High Low Moderate
3 Leaching of nutrients is due to Drying of soil Combustion of soil Acidification of soil Neutralization of soil
4 The overall effect of the photochemical smog in the after noon is built up of Neutralization oxidizing agent Reducing agent Activating agent
5 The respiration process taking place in animals depends on a difference in  Partial pressure Osomotic pressure Vapour pressure Atomospheric pressure
6 A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has: Definite shape Definite volume Crystalline structure No crystalline structure
7 The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called: Ionic bonding Metallic bonding Bridge bonding H-bonding
8 0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid: 0.1  1.3 2 3
9 Chemical equilibrium involving  reactants and products in more than one phase is called: Homogeneous  Heterogeneous  Dynamic Static
10 The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x? 39.6 40.5 42.7 45.1
11 What is the morality of a solution containing 15g of urea is 500cm3 of solution? 1M 0.5M 2M 1.5M
12 Which is the following is true about galvanic cell: Reduction occurs at cathode Reduction occurs at anode Anode is negatively charged Chathode is positively charged
13 Lanthanides an actinides belong to following group of periodic table: IB VIIIB IIB IIIB
14 The Catalyst used in the contact tower for the manufacture of H2SO4  is easily poisoned by: Nitrous oxide Nitrogen gas Arsenic oxide  Carbon dioxide 
15 Alkali metals react viotlently with halogens: Halides Anhydrides Hydrides None of the above
16 Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass: Ionic character of the compounds The first ionization energy  The basic character of the oxides The stability of +2 oxidation
17 Ozone is an allotropic form of: Carbon Phosphorus Oxygen  Sulfur 
18 Electropositive character increases down the groups due to: Increase in atomic size of the elements Decrease in ionization potential Decreases in electromagnetically of the element All the above
19 Which of spectral lines when atoms are subjected to strong electric field is called: Compton effect Stark effect Zeeman effect Photoelectric effect
20 Splitting of spectral lines when atoms are subjected to strong electric field is called: Compton effect Stark effect Zeeman effect Photoelectric effect
Download This Set
×