A group of china plates is typically referred to as a "set" or "dinnerware set." In a more specific context, it may also be called a "service," such as a service for four or six, indicating the number of place settings included. Collectively, they can also be described as "china" or "tableware."
The -OH group is called the hydroxyl group
A group of 16 is called a sextet.
A group of albatrosses is called a "rookery" or a "group."
It is called an elemental group.
A group of fleas is called a swarm.
A group of Dolphins are called a Pod
A group of dolphins is called a pod. If that is your question.
a group of Blackbirds is called a murder
A group of shrews is called N.O.W.
A group of hens is called a brood.
A group of martens is called a richness
A group of grouses is called a covey
A group of grapes is called a bunch of grapes.
A group of Spiders is called a cluster or clutter. Spiders belong to the group of animals called arachnids.
A group of swine is called a sounder or drift
The -OH group is called the hydroxyl group
A group of skunks is called a surfeit or a stench.