29 Questions
What did the Governance of Basic Education Act (R.A. 9155) do?
Renamed the DECS to DepEd and redefined the role of field offices
What is the purpose of the K to 12 PROGRAM (R.A. 10533)?
All of the above
What is the purpose of Values Education in the IMPLEMENTATION OF NEW SECONDARY EDUCATION CURRICULUM?
Both a and b
Which type of organic reaction involves the replacement of an atom or group of atoms by another species?
Substitution
Which type of organic reaction involves the removal of atoms or groups of atoms from adjacent atoms to form a double or triple bond?
Elimination
Which type of organic reaction involves the addition of atoms or groups to adjacent atoms of a multiple bond?
Addition
What is the main purpose of a reaction equation?
To show the reactants and products of a chemical reaction
Which type of reaction intermediate has 7 outer shell electrons and is neutral?
Free radicals
What characterizes a Lewis acid in a chemical reaction?
It accepts electrons from other species
How are free radicals typically formed?
Through bond cleavage with evenly divided bonding electrons
What type of species is considered an electrophile in a chemical reaction?
An electron-deficient species that accepts electrons
Which statement best describes a carbanion?
It has 8 outer shell electrons and is negatively charged
What type of reaction sustains itself through repeating chain propagation steps?
Chain propagation
In halogenation, which element is replaced by a halogen?
H
According to Zaitsev's Rule, which type of alkyne will predominate?
Most substituted alkyne with alkyl groups
What do isomers have in common?
Same molecular formula but different structural formula
What does the molecular formula of a compound provide?
The bonding arrangement of atoms in a molecule
What rule must be followed when drawing structural isomers?
Every atom in the molecular formula must be used
What is the term used to describe a pair of optical isomers that are non-superimposable mirror images?
Enantiomers
What is the term used to describe a compound that rotates plane polarized light?
Optically active compound
What is the term used to describe a 50/50 mixture of a pair of enantiomers?
Racemic mixture
What is the term used to describe the rotation of plane polarized light to the right?
Dextrorotatory
What is the term used to describe the rotation of plane polarized light to the left?
Levorotatory
Which statement best describes conformational isomerism?
Atoms have the same bonding arrangement but differ in spatial orientation due to rotation around a carbon-carbon single bond.
Which conformation of cyclohexane is the most stable?
Chair conformation
In the chair conformation of cyclohexane, what are the bonds perpendicular to the ring called?
Axial bonds
What is the difference between cis and trans isomers?
Cis isomers have groups on the same side of a ring or double bond, while trans isomers have groups on opposite sides.
What is a functional isomer?
An isomer with a structural difference that places it in a different class of organic compounds.
What is the purpose of units of unsaturation in organic chemistry?
To determine the number of rings or double bonds present in a molecule.
Test your knowledge on key Philippine education laws, including the Governance of Basic Education Act (R.A. 9155) and the Kindergarten Act (R.A. 10157). Learn about the renaming of DECS to DepEd, the redefined roles of field offices, the integration of Values Education, and the institutionalization of kindergarten education in the basic education system.
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