Questions

Which of the following reactions are exothermic?

$$\begin{gathered} 1) C + O2 → CO2 \\ 2) 2Mg + O2 → 2MgO \\ 3) CuSO4 + 5H2O → CuSO4.5H2O \\ 4) All the above \end{gathered}$$

Select the antonym of

cameo

From the following pairs, find the one which is correctly matched?

Improve the bracketed part of the sentence.

As the financial situation worsened we realized that we were heading (toward) a disaster.

Find the missing Number?

Select the antonym of

VILE

Select the antonym of

ingestion

Sort each description by the type of RNA it describes?

a) contains an anticodon
b) specifies the amino acid squence for a protein
c) contains exons
d) has amino acids covalently attached
e) is a component of ribosomes
f) is the most abundant form of RNA