Question

in_the_loop_004 the most crucial or important test of worth The expression originates from the use of nitric acid on gold to determine whether the gold was genuine.

Accepted Answer

ACID TEST Parents might be willing to buy this new toy for their children but the real acid test is whether or not the children themselves like it.The acid test for laundry soap is not how well it cleans in hot water, but how well it cleans in cold water.

Id	in_the_loop_004
Idiom	ACID TEST
Definition	the most crucial or important test of worth
Examples	Parents might be willing to buy this new toy for their children but the real acid test is whether or not the children themselves like it. The acid test for laundry soap is not how well it cleans in hot water, but how well it cleans in cold water.
Extra Info	The expression originates from the use of nitric acid on gold to determine whether the gold was genuine.

Acid Test Children Cleans Gold Loop Crucial Important