It's malformed; you need proper ending tags; e.g.
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml =
@"<View>
<Query>
<Where>
<Eq>
<FieldRef Name='Category'/>
<Value Type='Text'>Development</Value>
</Eq>
</Where>
</Query>
<RowLimit>100</RowLimit>
</View>";