Concept explainers
(a)
Interpretation:
The example of covalent network solid related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their
(b)
Interpretation:
The example of disproportionation reaction related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(c)
Interpretation:
The example of paramagnetic oxide related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(d)
Interpretation:
The example of polar molecule that violets the octet rule related to main group chemistry.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(e)
Interpretation:
The example of Lewis acid related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(f)
Interpretation:
The example of amphoteric oxide related to main group chemistry needs to be determined.
Concept introduction:
All know elements are placed in the Long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements inner transition elements.
(g)
Interpretation:
The example of semiconductor related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(h)
Interpretation:
The example of strong oxidizing agent related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
(i)
Interpretation:
The example of allotropes related to main group chemistry needs to be determined.
Concept introduction:
All known elements are placed in the long form of periodic table according to their atomic number. Entire table can be divided into four blocks; s, p, d and f-block elements. The s and p-block elements are combine called as main-group elements. The d-block elements are also called transition elements whereas the f-block elements are inner transition elements.
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LCPO CHEMISTRY W/MODIFIED MASTERING
- (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true but the second is false, and (D) if the first sentence is false but the second is true. 1. When a non-metallic oxide reacts with water, a base will be formed as the product of the reaction. When a metallic oxide like phosphorous pentoxide reacts with water, a base will be formed as the product of the reaction. 2. When water is mixed with oxides, hydrogen gas is evolved. A red to blue color change in the litmus paper indicates that the solution tested is an acid. 3. The filtrate in any filtration process is left on the surface of the filter paper, while the residue is collected at the bottom of the flask/container after passing through the filter paper. In the distillation process, the methyl violet served as a compound to acidify the water. 4. In the Winkler Titration Method, the starch solution turns colorless in the presence of free iodine in the solution to be titrated. In the Winkler…arrow_forwardDescribe as oxides, peroxides or super-oxides the binary of the following oxygen compounds (answers without justification). (a) BaO2 (b) HNO3 (γ) H2S (δ) LiOH (ε) P4O6 (f) P4O10 (g) SO3 (h) RbO2 (i) SrO (i) ZnSO4arrow_forwardQu) Are The elements sodium, aluminum, and chlorine are in the same period? And give the right answer for the followings (a) Which has the greatest electronegativity? (b) Will the oxide of cach element be acidic, basic, or amphoteric? 4) Why is it possible for an active metal like aluminum to be useful as a structural metal?arrow_forward
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- Which group(s) of the periodic table is (are) described byeach of the following general statements?(a) The elements form compounds of VSEPR class AX₃E.(b) The free elements are strong oxidizing agents and formmonatomic ions and oxoanions.(c) The atoms form compounds by combining with two otheratoms that donate one electron each.(d) The free elements are strong reducing agents, show only onenonzero oxidation state, and form mainly ionic compounds.(e) The elements can form stable compounds with only threebonds, but as a central atom, they can accept a pair of electronsfrom a fourth atom without expanding their valence shell.(f) Only larger members of the group are chemically activearrow_forwardcould you identify A and B?arrow_forwardWhich of the following statements are true?(a) Si can form an ion with six fluorine atoms, SiF62-,whereas carbon cannot.(b) Si can form three stable compounds containing two Siatoms each, Si2H2, Si2H4, and Si2H6.(c) In HNO3 and H3PO4 the central atoms, N and P, havedifferent oxidation states.(d) S is more electronegative than Se.arrow_forward
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