Chemistry Bonding Challenge

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Test your knowledge on bonding, shapes, and trends.

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Annisa A. Dzikrillah

Indonesia

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Chemistry Bonding Challenge


Froggy Jumps Chemistry Bonding ChallengeVersión en línea Test your knowledge on bonding, shapes, and trends. por Annisa A. Dzikrillah 1 What is the nature of the X-Y compound given X: 2,8,1 and Y: 2,6? a Conducts electricity in solid state b Ionic; formula X2Y c Low melting point due to weak forces 2 Which molecule has a permanent dipole moment? a CCl4 b CO2 c PCl3 3 Why are metals good conductors and malleable? a Very strong Van der Waals forces b Cations slide over a sea of electrons c Strong localized electron pairs 4 Based on VSEPR, 2 bonding pairs and 2 lone pairs gives which geometry? a Linear b Bent (V-shaped) c Tetrahedral 5 Order bond strength from strongest to weakest? a Single > Double > Triple b Triple > Double > Single c Hydrogen > Covalent > Ionic 6 Hydrogen bonding gives highest boiling point among which substance group? a CH4 b HCl c NH3 7 Why does SF6 adopt octahedral shape? a There are 6 lone pairs on S b Fluorine is most electronegative c Sulfur in period 3 can expand valence shell 8 What is the bond angle in methane and why? a 120° due to trigonal planar b 109.5° to minimize repulsion in a tetrahedral shape c 90° due to p-orbitals 9 If electronegativity difference between A and B is 1.4, bond type is? a Ionic b Polar covalent c Non-polar covalent 10 Which statement about ethene (C2H4) is true? a Each carbon is sp2 hybridized with a C=C bond b Highly soluble in water c Contains a triple bond 11 Which statement best explains why sodium chloride forms an ionic bond rather than a covalent bond? a B. Sodium tends to gain electrons while chlorine tends to lose electrons b C. The electronegativity difference between sodium and chlorine is large c A. Sodium and chlorine have similar electronegativities 12 A compound has a high melting point, conducts electricity when molten, and is soluble in water. Which type of bonding is most likely present? a A. Covalent bonding b D. Ionic bonding c B. Metallic bonding 13 Which pair of elements is most likely to form a polar covalent bond? a A. H and H b B. Na and Cl c D. O and H 14 Why do metallic bonds allow metals to conduct electricity? a A. Metal atoms share electrons in fixed positions b B. Valence electrons are delocalized and free to move c D. Electrons are transferred between metal atoms 15 Which statement correctly compares single, double, and triple bonds? a C. Triple bonds have the highest bond energy b A. Single bonds are stronger than triple bonds c D. Bond length increases with bond order 16 Two molecules have the same molecular formula but different shapes. Which concept best explains this difference? a B. Isomerism b A. Electronegativity c D. Metallic bonding 17 Why does water have a bent molecular shape instead of a linear shape? a D. Water contains hydrogen bonds b A. Oxygen forms two double bonds with hydrogen c B. Lone pairs on oxygen repel bonding pairs 18 According to VSEPR theory, which molecule has a tetrahedral shape? a A. CO2 b C. CH4 c B. NH3 19 Which factor most strongly determines the shape of a molecule? a A. Molecular mass b D. Type of bond only c C. Repulsion between electron pairs 20 Why does ammonia (NH3) have a trigonal pyramidal shape? a D. It contains hydrogen bonding b B. Nitrogen forms ionic bonds with hydrogen c A. It has three bonding pairs and one lone pair

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Chemistry Bonding Challenge

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Chemistry Bonding ChallengeVersión en línea

por Annisa A. Dzikrillah

What is the nature of the X-Y compound given X: 2,8,1 and Y: 2,6?

Which molecule has a permanent dipole moment?

Why are metals good conductors and malleable?

Based on VSEPR, 2 bonding pairs and 2 lone pairs gives which geometry?

Order bond strength from strongest to weakest?

Hydrogen bonding gives highest boiling point among which substance group?

Why does SF6 adopt octahedral shape?

What is the bond angle in methane and why?

If electronegativity difference between A and B is 1.4, bond type is?

Which statement about ethene (C2H4) is true?

Which statement best explains why sodium chloride forms an ionic bond rather than a covalent bond?

A compound has a high melting point, conducts electricity when molten, and is soluble in water. Which type of bonding is most likely present?

Which pair of elements is most likely to form a polar covalent bond?

Why do metallic bonds allow metals to conduct electricity?

Which statement correctly compares single, double, and triple bonds?

Two molecules have the same molecular formula but different shapes. Which concept best explains this difference?

Why does water have a bent molecular shape instead of a linear shape?

According to VSEPR theory, which molecule has a tetrahedral shape?

Which factor most strongly determines the shape of a molecule?

Why does ammonia (NH3) have a trigonal pyramidal shape?