Recent questions in SAT

If $xyz=8$ and $y^2z=6$ find the value of $\large\frac{x}{y}$ ?

asked Jun 8, 2018 by meena.p

1 answer

If $ab=5, bc=\large\frac{5}{7},$ $ac=7$ the possible value(s) of $abc$ is

asked Jun 8, 2018 by meena.p

1 answer

If $12a-3b=131,$ and $5a-10b=61$ , then what is the value of $a+b$ ?

asked Jun 8, 2018 by meena.p

1 answer

A magazine publisher has a fixed amount of monthly production costs. If each month he sells 400 copies of the magazine, his monthly profit is $\$4600$ and if he sells $300$ copies, his monthly profit is $\$2500$ . What are the publisher's monthly production costs ?

asked Jun 8, 2018 by meena.p

1 answer

If $\large\frac{1}{3}$ or $(\large\frac{2}{9})$ of a certain number is $\large\frac{2}{3}$ or $\large\frac{1}{9}$ , then the number is

asked Jun 8, 2018 by meena.p

1 answer

For what value of x, if any is $\large\frac{(4-2x)(x-6)}{(6+3x)}$ undefined?

asked Jun 8, 2018 by meena.p

1 answer

Which of the above bonds explains water's abnormally high boiling point?

asked Jun 8, 2018 by meena.p

1 answer

The energy required to break one mole of $Cl-Cl$ bonds in $Cl_2$ is $242\;kJ\; mol^{-1}$ . the longest wavelength of light capable of breaking a single $Cl-Cl$ bonds is $(c=3 \times 10^4\;ms^{-1}\;and\;N_A=6.02\times 10^{23}mol^{-1})$

asked Jun 8, 2018 by meena.p

1 answer

How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?

asked Jun 8, 2018 by meena.p

1 answer

A molecule with a single covalent bond is ____.

asked Jun 8, 2018 by meena.p

1 answer

Once formed, how are coordinate covalent bonds different from other covalent bonds?

asked Jun 8, 2018 by meena.p

1 answer

Why is hydrogen bonding only possible with hydrogen?

asked Jun 8, 2018 by meena.p

1 answer

Atoms undergo bonding in order to ?

asked Jun 7, 2018 by meena.p

1 answer

During bonding, why do main group elements tend to lose or gain electrons as per the octet rule?

asked Jun 7, 2018 by meena.p

1 answer

Lattice energy is the measure of

asked Jun 7, 2018 by meena.p

1 answer

The maximum number of $90^{\circ}$ angles between bond pair of electrons is observed in

asked Jun 7, 2018 by meena.p

1 answer

Johannah has $\$50$ for soda and she needs to buy both diet and regular soda. Her total order must have at exactly 2 times as many cans of diet soda as cans of regular soda. What is the greatest number of cans of diet soda can she can buy if regular soda is $\$0.50$ per can and diet soda is $\$0.75$ per can?

asked Jun 7, 2018 by meena.p

1 answer

Eva needs to dilute some acid. How much pure water should be added to 2 gallons of $80\%$ acid to yield $20\%$ acid ?

asked Jun 7, 2018 by meena.p

1 answer

Steve sells cars. His monthly salary is $\$1500$ . He gets a commission of $\$500$ for each car he sells. If he wants to make $\$8500$ this months, how many cars would he have to sell ?

asked Jun 7, 2018 by meena.p

1 answer

The sum of a two digit number and the number formed by interchanging its digits is 110. if 10 is subtracted from the first number, the new number is 4 more than 5 times the sum of the digits in the first number. Find the first number.

asked Jun 7, 2018 by meena.p

1 answer

The sum of two numbers is 8. If their sum is four times their difference, then the numbers are _______

asked Jun 7, 2018 by meena.p

1 answer

Solve for $x:|2x-3|-x=5$

asked Jun 7, 2018 by meena.p

1 answer

$x+2y=14\ 2x+y=13$ . If (x,y) is the solution for the above system of equation find the value of $3x+7y$

asked Jun 7, 2018 by meena.p

1 answer

If the system of linear equations given below has infinitely many number of solutions, find the value of $\large\frac{a}{b}$ $\;-\;4$ $\qquad \qquad \qquad 2x\;-\;(a-4)y\;=\;2b\;+\;1,$ $\qquad \qquad \qquad 4x\;-\;(a-1)y\;=\;5b\;-\;1$

asked Jun 7, 2018 by meena.p

1 answer

The line $\large\frac{x}{a} +\frac{y}{b}$ $=1$ touches _________

asked Jun 7, 2018 by meena.p

1 answer

The value of 'k' for which the system $x+2y=13;(k-1)x+(k+1)y=k+2$ has no solutions is

asked Jun 7, 2018 by meena.p

1 answer

Water has high heat of vaporisation due to

asked Jun 7, 2018 by meena.p

1 answer

In the following which bond will be responsible for maximun value of hydrogen bond

asked Jun 7, 2018 by meena.p

1 answer

Using MO theory predict which of the following species has the shortest bond length ?

asked Jun 7, 2018 by meena.p

1 answer

Which of the following compounds has the smallest bond angle in its molecule ?

asked Jun 7, 2018 by meena.p

1 answer

Higher the bond order greater is

asked Jun 7, 2018 by meena.p

1 answer

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

1 answer

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

0 answers

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

0 answers

Which of the following statements about sodium chloride is incorrect?

asked Jun 7, 2018 by meena.p

1 answer

The bonds present in $N_2O_5$ are ______

asked Jun 6, 2018 by meena.p

1 answer

Which among the following is both a molecule and a compound?

asked Jun 6, 2018 by meena.p

1 answer

State whether the given statement is true or false “Ionic bonds are non-directional”

asked Jun 6, 2018 by meena.p

1 answer

A number consists of two digits whose sum is five. When the digits are reversed, the new number becomes greater by 9 to the original number. Then the original number is.

asked Jun 6, 2018 by meena.p

1 answer

Three years ago Tim was twice as old as Susan. Twelve years ago Tim was three times as old as Susan. How many years older than Susan is Tim ?

asked Jun 6, 2018 by meena.p

1 answer

Emmy is counting his monkey when he notices that he has 3 more quarters than dimes and the number of nickels are the same as the sum of quarters and dimes. The total cash he has in hand is $\$3.60$ . How many quarters does he have ?

asked Jun 6, 2018 by meena.p

1 answer

There are two classrooms A and B containing students. If 5 students are shifted from room A to room B, the resulting number of students in the two rooms are equal. If 5 students are shifted from room B to room A,the number of students in room A becomes double the number of students left in room B. Find the original number of students in the two rooms separately

asked Jun 6, 2018 by meena.p

1 answer

In a farm, every sheep has 4 legs and every chicken has 2 legs. If a farm boy counts 100 heads and 260 feet, how many sheep are there ?

asked Jun 6, 2018 by meena.p

1 answer

If $(x,y)$ is the solution to the system of equations above , find the value of y. $\large\frac{x}{y}$ $=8$ and $3(y+2)=x$

asked Jun 6, 2018 by meena.p

1 answer

In the system of equation below $a$ and $b$ are constant . If it has no solution, What is the value of $\Large\frac{a}{b} +\frac{1}{4}$ $\qquad \qquad \qquad ax-by=10, \\\qquad \qquad \qquad x+4y=20.$

asked Jun 6, 2018 by meena.p

1 answer

If $3x+b=5x-7$ and $3y+c=5y-7$ where b and c are constants and if $b+c=2,$ which of the following is true?

asked Jun 6, 2018 by meena.p

1 answer

For what values of $a$ and $b$ does the following system of equations have infinitely many solutions? $\qquad \qquad \qquad ax+(b-1)y=5 ,\\ \qquad \qquad \qquad 2x-3y=-1.$

asked Jun 6, 2018 by meena.p

1 answer

If $(x,y)$ is a solution to the system of equation below, $\qquad \qquad \qquad 3x-2y=-14,\\ \qquad \qquad \qquad 2x-3y=-6,$ what is the value of $x-2y$ ?

asked Jun 6, 2018 by meena.p

1 answer

Ethyl alcohol and methoxy methane are isomeric but ethyl alcohol has higher boiling point because

asked Jun 6, 2018 by meena.p

1 answer

Which of the above bonds explains water's abnormally high boiling point?

asked Jun 6, 2018 by meena.p

1 answer

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