EVALUASI KIMIA KELAS XI 8 SMADA JEMBER

How many moles of NaCl are needed to react with 2 moles of AgNO₃ in the following reaction?

• 0.5 mol

• 1 mol

• 2 mol

• 4 mol

If 5 grams of hydrogen (H₂) react with oxygen (O₂) to form water (H₂O), how many grams of water are produced?

• 18 grams

• 45 grams

• 90 grams

• 180 grams

How many moles of CO₂ are produced from the complete combustion of 1 mole of C₃H₈ (propane)?

• 1 mol

• 2 mol

• 3 mol

• 4 mol

What type of chemical bond occurs between sodium (Na) and chlorine (Cl) in NaCl?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

The bond formed due to the sharing of a pair of electrons is called?

• Ionic bond

• Covalent bond

• Metallic bond

• Van der Waals bond

Which of the following molecules has a triple bond?

• O₂

• N₂

• H₂O

• CH₄

What is the molecular shape of CH₄ (methane)?

• Linear

• V-shape

• Tetrahedral

• Trigonal planar

What is the molecular shape of H₂O (water)?

• Linear

• V-shape

• Tetrahedral

• Trigonal planar

The molecule CO₂ has what molecular shape?

• Linear

• V-shape

• Tetrahedral

• Trigonal planar

According to VSEPR theory, how many lone pairs of electrons are on the central atom in the molecule NH3 (ammonia)?

• 0

• 1

• 2

• 3