Find the missing number in the series:3, 12, 27, 48, 75, 108, ?
Correct answer: A. 147
- A. 147
- B. 162
- C. 183
- D. 192
Explanation
The pattern of the series is 3 × n², where n is the term number. The terms are 3×1², 3×2², 3×3², and so on. The missing 7th term is 3 × 7² = 3 × 49 = 147.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reaction Kinetics questions
Consider the given statements to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statements:Statements:Pakistan is a multilingual country. Urdu is the national language of Pakistan.Conclusions:I. All Pakistanis should learn many languages.II. To be a Pakistani one needs to learn Urdu.
Find the error in following sentence"You think it's a practical joke." she asked as they went into the room.
Spot the error. Startled onlookers saw officers arm themselves and took up positions in front of the house.
Statements: 1. Tanya is older than Eric. 2. Cliff is older than Tanya. 3. Eric is older than Cliff. If the first two statements are true, the third statement is:
Statements: I. The State Bank of Pakistan has recently put restrictions on few small banks in the country. II. The small banks in the private and cooperative sector in Pakistan are not in a position to withstand the competitions of the bigger banks in the public sector.
Statement: A severe drought is reported to have been set in several parts of the country. Courses of Action:I. The government should immediately make arrangements for providing financial assistance to those affected.II. Food, water, and fodder should immediately be sent to all these areas to save the people and cattle.