A. 1.12 dm3

C. 112 dm3

D. 22.4 dm3

A. Calcium superphosphate

C. Potassium nitrate

D. Diammonium phosphate

A. Two sigma bonds

C. One sigma and two Pi bonds

D. Two Pi bonds

B. 100% alcohol

C. 12% alcohol

D. 90% alcohol

A. Ethylene chloride

B. Ethylene fluoride

C. Ethylene iodide

B. 2.0 x 10-8

C. 4.0 x 10-8

D. 4.0 x 10-12

A. n. butane

B. Ethanol

D. Diethy1 ether

A. aluminium can be recycled

C. aluminium has very low density

D. aluminium is the most abundant metal in the earth crust

A. 5

B. 3

C. 2

A. B2

B. O2+2

C. O2-2

A. Non polar solvent

B. None

C. Polar solvent

A. organic compounds can be synthesized by animals

C. Oorganic compounds can be synthesized from inorganic compounds

D. organic compounds can be synthesized by plants

A. Lime water

B. CaCl2

C. 50% KOH

A. 6

C. 5.1

D. 8

A. they possess different mass number

B. they possess different physical properties

C. they possess same chemical properties

B. alkalies

C. water

D. polar solvent

A. 0.184 mg

B. 1.008 mg

C. 5.4 mg

A. Reduction occurs at anode

B. K+ ion transfer from salt bridge to left beaker of ZnSO4

D. Oxidation occurs at cathode

B. Internal structural changes in matter

C. Properties of matter

D. Composition of matter

A. arsenic

B. nickel

D. iodine

B. Tape water

C. Brass

D. Sand

E. Sea water

A. 4

C. 6

D. 8

B. 80

C. 90

D. 70

A. Carboxylic acid

C. Butanoic acid

D. Ethanoic acid

B. chemical equilibrium is established

C. whole amount of reactant does not change into product

D. rate of forward reaction decreases as reaction proceeds

A. butanal

B. propene

D. butanoic acid

B. 0.2m

C. 0.2mm

D. 0.2pm

A. Electrical balance

B. Single beam balance

C. Analytical balance

B. none

C. gram dm-3

D. moles dm-3

A. Average mass of element

B. Relative isotopic mass

C. Relative abundance

B. State function

C. phase

D. state

A. Graphite

B. Diamond

D. Ice

B. CO is 3.75 times faster than CO2

C. CO is 1.25 times faster than CO

D. Both diffuse at the same rate

B. Kolbe

C. Berzilius

D. Berthelot

A. Temperature of the ystem may rise

C. Change in state of the system is increased

D. Chemical reaction may take place

A. F

B. I

C. Br

A. 9.1095 x 10-31 C/kg

B. 1.7588 x 1020 C/kg

D. 6.02 x 1023 C/kg

A. Pressure

C. Work

D. Bond length

A. there will be no boiling

B. increase

D. decrease

A. dried

B. decanted

C. decolorized

A. Impossible to predict

C. Higher than individual

D. No change

A. Fe2O3

C. Al2O3

D. Fe2O3 and SiO2

A. Hybrid orbital

C. Super atomic orbital

D. Bonding molecular orbital

A. Melted easily

C. All of the above

D. Converted into wires

B. Endothermic

C. Exothermic

D. Non-spontaneous reaction

B. Semi solid

C. Liquid

D. Solid

A. F

B. HF

D. H2O

A. It is a conductor of electricity

C. It may be the first state of matter

D. It is not a phase transition

B. Between 200 torr and 760 torr

C. any value of pressure

D. 765 torr

A. N2

B. Ne

D. CO