uray

At what stage of meiosis does synapsis occur?

• Prophase II
• Anaphase II
• Metaphase I
• Prophase I

Which hormone stimulates the ripening of fruits?

• Auxin
• Gibberellin
• Ethylene
• Cytokinin

What is the process of converting alkene to alkane?

• halogenation
• hydrogenation
• substitution
• oxidation

2X + 13O₂ ---> 8CO₂ +10H₂O. What is X?

• C₆H₁₄
• C₄H₁₀
• C₃H₇OH
• C₂H₅OH

X is used as catalyst in the manufacture of margarine. What is X?

• Nickel
• Fine iron powder
• Vanadium (V) oxide
• Platinum

Which of the following regarding the function of sulphuric acid is FALSE?

• Manufacture of detergents
• Manufacture of synthetic fibres
• Manufacture of fertilisers
• Manufacture of plastic

Which property of a wave changes after undergoing diffraction?

• Frequency
• Speed
• Wavelength
• Direction

Which element is used for the doping of a n-type semiconductor?

• Boron
• Indium
• Phosphorus
• Aluminium

What is the boolean algebraic expression of the following logic gate?

• X = A+B
• X = Ā
• X = A⋅B
• None of the above

Vitamin K is used to produce prothrombin in organ X. What is X?

• Kidney
• Caecum
• Pancrease
• None of the above