INORGANIC CHEMISTRY (PACOP VIOLET ) with multiple answers and a 100% correct answer.

What element is also known as dephlogisticated air?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. Sulfur
E. Helium - ANSWER B. Oxygen

What is the predominant ion in the extracellular fluid?
A. Na+1
B. K+1
C. Mg+2
D. Ca+2
E. Mn+2 - ANSWER A. Na+1

1. What is the halogen used as water purifier?
A. F
B. Cl
C. Br
D. I
E. At - ANSWER B. Cl

1. Which of the following substances is employed in the treatment of mental
disorder?
A. MgSO4
B. K2Cr2O7
C. Li2CO3
D. NaHCO3
E. KNO3 - ANSWER C. Li2CO3

What is the most reactive element among the halogens?
A. F
B. Cl
C. Br
D. I
E. At - ANSWER A. F

What condition results from the deficiency of iodine?
A. Hepatitis
B. Goiter
C. Infection
D. Scurvy
E. Peripheral neuropathy - ANSWER B. Goiter

What are the metals that combine to form the alloy, ferrochrome?
A. Lead and iron

,B. Lead and chromium
C. Chromium and tin
D. Iron and tin
E. Iron and chromium - ANSWER E. Iron and chromium

Which of the following statements about Bordeaux Mixture is/are true?
I. It is used as an antiseptic
II. It is used as an algicide-fungicide
III. It contains copper
IV. It contains cobalt - ANSWER II. It is used as an algicide-fungicide
III. It contains copper

1. Inert gases being investigated for possible use as inhalatory anesthetic
I. Kr
II. Xe
III. Ar
IV. He - ANSWER II. Xe
IV. He

1. What is the composition of artificial air?
A. 40% O2 and 60% He
B. 20% O2 and 80% He
C. 20% He and 80% O2
D. 80% Kr and 20% He
E. 40% Kr and 60% - ANSWER B. 20% O2 and 80% He

1. The following terms are uses of Rochelle salt EXCEPT:

A. Cathartic
B. Diuretic
C. Sequestering agent
D. Preservative
E. None of the above - ANSWER B. Diuretic

1. What metal is unaffected by body fluids hence it is used in such repair of bones,
nerves and muscles?

A. Aluminum
B. Tantalum
C. Tin
D. Thorium
E. Silicon - ANSWER B. Tantalum

1. What is the official barium salt used in medicine as a radiopaque substance in
roentgenographic examination of the GIT

,A. BaCl2
B. BaSO4
C. Ba(NO3)2
D. Ba3(PO4)2
E. BaCO3 - ANSWER B. BaSO4

1. What is the synthetic, radioactive noble gas used in the treatment of cervical and
oral lesion

A. Ar
B. Ir
C. Xe
D. Rn
E. None of the above - ANSWER D. Rn

1. What is the most abundant metal on the earth's trust?
A. Fe
B. Al
C. Cu
D. Au
E. Si - ANSWER B. Al

1. What elements compose the alloy bronze?
A. Cu and Au
B. Cu and Zn
C. Cu and Sn
D. Cu and Tn
E. Cu and Ag - ANSWER C. Cu and Sn

1. The measure of the acidity of a solution is also known as
A. pH
B. pOH
C. Buffer
D. Concentration
E. pI - ANSWER A. pH

1. What inert substance is used to prolong the shelf-life of products by displacing air
inside the container?
A. Oxygen
B. Helium
C. Carbon dioxide
D. Nitrogen
E. 19. Hydrogen - ANSWER D. Nitrogen

, 1. Which among the elements does NOT form basic anhydride?
A. Ca
B. Na
C. Ba
D. Mg
E. S - ANSWER E. S

1. Which of the following substance is/are used as inhalant in all pathological
conditions characterized by dyspnea?
I. Oxygen
II. Helium
III. Carbon dioxide
IV. Nitrogen - ANSWER I. Oxygen

21. An extremely unreactive substance considered to have the lowest coefficient of
thermal expansion among metals
A. Gold
B. Platinum
C. Palladium
D. Silicon
E. Krypton - ANSWER B. Platinum

21. What is the meaning of "halogen"?
A. Acid-former
B. Water-former
C. Niter-producer
D. Sea salt-former
E. None of the above - ANSWER D. Sea salt-former

21. Which of the two following substances is native hydrous magnesium silicate?
A. Talc
B. Pumice
C. Kaolin
D. Bentonite
E. Clay - ANSWER A. Talc

21. What is the active ingredient of White lotion?
A. CdS
B. SeS
C. PbS
D. ZnS
E. MnS - ANSWER D. ZnS

21. What is the color of the cylinder that is used to contain O2?
A. Black