| Shashank mishra asks : : Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture? 1.In alkali metals the reactivity increases, but in the halogens it decreases with increase in atomic number down the group. 2.The reactivity decreases in the alkali metals, but increases in the halogens with increase in atomic number down the group. 3.In both the alkali metals and the halogens the chemical reactivity decreases with increase in atomic number down the group. 4.Chemical reactivity increases with incr |
| Anurag asks : A,B,C are three sets of values of x: A: 2,3,7,1,3,2,3 B: 7,5,9,12,5,3,8 C: 4,4,11,7,2,3,4 Which one of the following statements is correct? (a) Mean of A=Mode of C (b) Mean of C=Median of B (c) Median of B=Mode of A (d) Mean,Median and Mode of A are equal |
| Maninder malik asks : decide which of the answers (1)(2)(3)4)and (5) is the correctanswer and indicate it on the answer sheet. Give answer (1) if only conclusion I is follows. Give answer (2) if only conclusion II is followsGive answer (3) if either conclusion I or II follows.Give answer (4) if neither I nor II is follows. Give answer (5) if both I and II follow. 22. Statements:Some bowls are spoons Some spoons are forks All forks are plates. Conclusions:I. Some bowls are forks.II. Some spoons are plates |
| Maninder malik asks : 21. Statements: Some pens are books. All books are pencils. All pencils are jars. Conclusions: I. All books are jars. II. Some pens are pencils. 22. Statements: Some bowls are spoons Some spoons are forks All forks are plates. Conclusions: I. Some bowls are forks. II. Some spoons are plates. Explian how i m slove easy and early |
| Raj jaswal asks : Four people are suspected of stealing a jewel from a house. If one of their statements are true, and one is false, who is the thief? Bo said: It was Bo. It wasn't Roman. Roman said: It was Kate. It wasn't Bo. John said: It was Roman. It wasn't Kate. Kate said: It was John. It was Bo. |